The TI-83 graphing calculator can be used to plot simple algebraic shapes such as lines and parabolas with an equation or a table of values. Tapping into the latter functionality requires setting up a statistics table with two columns -- one for x-axis values and one for y-axis values. After setting it up, you need only enable statistics plotting, set up coordinates corresponding to the graph's range and then graph it.
Instructions
1. Press the "STAT" button and then hit "ENTER."
2. Enter the first x-axis value, press the down arrow, enter the second x-axis value and continue doing this until all the x-axis values have been submitted. Press the right arrow key, enter the first y-axis value, press the down arrow, enter the second y-axis value and continue doing this until all the y-axis values have been submitted.
3. Press the "2ND" button and then the "Y=" button. Press "ENTER" twice.
4. Enter a number corresponding to the minimum x-axis coordinate that the graph should cover. Press the down arrow and then enter the number corresponding to the maximum x-axis coordinate that the graph should cover. Press the down arrow twice, enter the y-axis minimum, press the down arrow again and enter the y-axis maximum.
5. Press the "GRAPH" key.
Friday, August 9, 2013
Find the Equal Sign on a Graphing Calculator
A graphing calculator helps students understand the relationship between mathematics and science. A graphing calculator is used in classes like algebra, trigonometry, calculus, physics and statistics. The calculator helps students visualize problems by entering formulas and complex equations that a regular calculator cannot do. A graphing calculator features more buttons and options than a regular calculator, so finding the "equal" sign can be difficult. Depending on what type of graphing calculator you are using, finding the "equal" sign requires you to push a series of buttons.
Instructions:
TI-82, TI-83
1. Press the "Power" button and enter a math or science problem.
2. Press the blue "2nd" and black "Math" buttons simultaneously to view the test menu.
3. Use the cursor keys to select "1." This is the "equal" button.
4. Press the blue "Enter" button to complete the equation and find the answer.
TI-85, TI-86
1. Press the "Power" button and enter an equation.
2. Press the yellow "2nd" and black "2" buttons on the graphing calculator. This will display the test menu.
3. Press the cursor buttons until the "=" sign is highlighted.
4. Press the "Enter" key to submit the problem and find the answer to the problem.
TI-89, TI-92
1. Press the "Power" button to turn on the graphing calculator and enter a math equation.
2. Press the orange "2nd" key along with the "5" and "8" keys at the same time.
3. Press the "5" key to select the "equal" sign. You can also press the cursor keys until the "5" is highlighted.
4. Press the blue "Enter" button to solve the problem.
Instructions:
TI-82, TI-83
1. Press the "Power" button and enter a math or science problem.
2. Press the blue "2nd" and black "Math" buttons simultaneously to view the test menu.
3. Use the cursor keys to select "1." This is the "equal" button.
4. Press the blue "Enter" button to complete the equation and find the answer.
TI-85, TI-86
1. Press the "Power" button and enter an equation.
2. Press the yellow "2nd" and black "2" buttons on the graphing calculator. This will display the test menu.
3. Press the cursor buttons until the "=" sign is highlighted.
4. Press the "Enter" key to submit the problem and find the answer to the problem.
TI-89, TI-92
1. Press the "Power" button to turn on the graphing calculator and enter a math equation.
2. Press the orange "2nd" key along with the "5" and "8" keys at the same time.
3. Press the "5" key to select the "equal" sign. You can also press the cursor keys until the "5" is highlighted.
4. Press the blue "Enter" button to solve the problem.
Find Normal Distribution on a TI-83 Calculator
The TI-83 is a standard Texas Instruments graphing calculator. Some schools provide these to their students, while others require you to buy your own. A TI-83 can be a big purchase, especially for a high school student. Make sure you get the most out of the calculator by learning everything it can do. One function you may need is finding normal distribution with the TI-83. Normal distribution is the area of a set of data that forms a symmetrical bell-shaped curve. It is evenly distributed on both sides.
Instructions:
Finding Normal Distribution with the TI-83
1. Press the "2nd" key. The "2nd" key is usually yellow.
2. Press the "VARS" key. It is the distribution function. It will display a list.
3. Select "2:normalcdf(" from the list by pressing "2" or using the cursor. The cdf stands for cumulative distribution function. This option will help you calculate normal distribution probabilities—the area under the curve. Press "Enter." The screen will display "normalcdf(."
4. Type "-1,1)" into the screen. This will add onto the end of the previous display so that it reads like this: normalcdf(-1,1).
5. Press "Enter" to calculate the normal distribution. In this case, it is 0.6827, which means 68.27 percent.
Graphing Normal Distribution with the TI-83
1. Press "2nd" and "VARS."
2. Choose the menu option for the function you wish to graph, such as "1:normalpdf(."
3. Input your data as you did before.
4. Set the window size to show your data on the screen. Guidelines can be found online or from your teacher.
5. Type the value of "x" using "TRACE." Press "Enter."
Instructions:
Finding Normal Distribution with the TI-83
1. Press the "2nd" key. The "2nd" key is usually yellow.
2. Press the "VARS" key. It is the distribution function. It will display a list.
3. Select "2:normalcdf(" from the list by pressing "2" or using the cursor. The cdf stands for cumulative distribution function. This option will help you calculate normal distribution probabilities—the area under the curve. Press "Enter." The screen will display "normalcdf(."
4. Type "-1,1)" into the screen. This will add onto the end of the previous display so that it reads like this: normalcdf(-1,1).
5. Press "Enter" to calculate the normal distribution. In this case, it is 0.6827, which means 68.27 percent.
Graphing Normal Distribution with the TI-83
1. Press "2nd" and "VARS."
2. Choose the menu option for the function you wish to graph, such as "1:normalpdf(."
3. Input your data as you did before.
4. Set the window size to show your data on the screen. Guidelines can be found online or from your teacher.
5. Type the value of "x" using "TRACE." Press "Enter."
Graph Slope on a TI-83 Plus Calculator
To graph a slope on a TI-83 calculator, you must know the slope's linear function. The linear function equation is y=mx+b. The slope is m. B is where the slope crosses the y axis on the graph. Y and x are the x and y coordinates for the graph. Once you input this function into the TI-83, the TI-83 automatically makes the graph for you.
Instructions
1. Press "Y=."
2. Enter your equation on the first line. "Y=" is already in the calculator, so you only need to enter everything to the right of the equals (=) sign in your formula.
3. Press "Zoom" then "6." This sets the zoom view. The view on "6" is the ZStandard view. If you choose to, play with the other zooms until you find one you prefer. The zoom function may be different depending on the type of graph you use.
4. Press "Graph." This displays your graph with the zoom settings you set in the previous step.
Instructions
1. Press "Y=."
2. Enter your equation on the first line. "Y=" is already in the calculator, so you only need to enter everything to the right of the equals (=) sign in your formula.
3. Press "Zoom" then "6." This sets the zoom view. The view on "6" is the ZStandard view. If you choose to, play with the other zooms until you find one you prefer. The zoom function may be different depending on the type of graph you use.
4. Press "Graph." This displays your graph with the zoom settings you set in the previous step.
Find X & Y Intercepts on a Graphing Calculator
Using a graphing calculator is a fast and effective way to identify the X and Y intercepts of a function. Using the built-in tools allows you to find the intercepts without doing the algebra.
Instructions
1. Enter the equation. Press the "Y=" button on the calculator. Clear out any existing equations. Enter the equation paying careful attention to include all parentheses and operators.
2. Graph the equation. Press the "Zoom" button. Select a zoom that will work for your equation. It will need to include the X and Y intercepts.
3. Find the Y intercept. Press the "Trace" button. Press the "0" button. This will move the cursor to the Y intercept where X = 0. Look at the bottom of your screen; the Y-intercept will be displayed there.
4. Find the X intercept(s). Press the "2nd" key then the "Calc" key. This accesses the trace menu. Scroll down to "Zero" and press "Enter." Using the arrow keys, scroll to the left of the X intercept and press "Enter." Scroll to the right of the intercept and press "Enter'" twice. The X intercept will be displayed the bottom of your screen. Some equations have more than one X intercept; perform these steps for each one.
Instructions
1. Enter the equation. Press the "Y=" button on the calculator. Clear out any existing equations. Enter the equation paying careful attention to include all parentheses and operators.
2. Graph the equation. Press the "Zoom" button. Select a zoom that will work for your equation. It will need to include the X and Y intercepts.
3. Find the Y intercept. Press the "Trace" button. Press the "0" button. This will move the cursor to the Y intercept where X = 0. Look at the bottom of your screen; the Y-intercept will be displayed there.
4. Find the X intercept(s). Press the "2nd" key then the "Calc" key. This accesses the trace menu. Scroll down to "Zero" and press "Enter." Using the arrow keys, scroll to the left of the X intercept and press "Enter." Scroll to the right of the intercept and press "Enter'" twice. The X intercept will be displayed the bottom of your screen. Some equations have more than one X intercept; perform these steps for each one.
Using a TI 89 Titanium Graphing Calculator
The TI-89 Titanium is no ordinary calculator. Texas Instruments designed it as its top-of-the-line and most powerful graphing calculator. The Titanium device builds on the success of the early TI-89 calculator to include advanced features like extra internal memory and pre-loaded calculator applications. Discover how to setup and start using your TI-89 Titanium calculator to unleash its full potential and make use of all of its features.
Instructions
1. Load the TI-89 Titanium's batteries. Push and slide down the battery compartment cover on the back of the calculator. Insert four AAA-sized batteries, included with all new TI-89 products, into the compartment and replace its cover.
2. Power on the device. Press its "ON" button. A progress loading bar will appear on the screen. Once its loaded, you'll be greeted with the TI-89's application desktop.
3. Open an application. Use the device's arrow controls, located on the top right side of the calculator's keypad, to highlight different applications. For example, you can open "Graph" to use the calculator's graphing features, or "Clock" to view the time. Once the application you want is highlighted, push the "ENTER" key to launch it.
4. Start graphing. Open the "Graph" application. Press the button with a diamond-shaped symbol, then press the key labeled "Y=". Type the function that you would like to graph. For example, "(abs(x-3)-10)/2" (without quotation marks). Press "F2" and "6" to display the graph.
5. Enter special characters. This is useful when typing mathematical or scientific calculations. Press the "2ND" and "CHAR" keys simultaneously to open the device's characters menu. Use the calculator's arrow keys to choose a character category, like "Math" or "Punctuation." Press "ENTER" to view special characters that you can insert.
6. Return to the application desktop once you're done using an application. Press the "APPS" key on the calculator's keypad. Alternatively, press the "2ND" and "QUIT" keys simultaneously.
7. Turn off the TI-89 Titanium. Press its "2ND" and "OFF" keys simultaneously to power the device down.
Tips & Warnings
- The word "BATT" will appear at the top of the TI-89 Titanium's screen when its batteries are low and need replacing. Before replacing its batteries, always turn off the device. Otherwise, you may lose some of your settings or saved data.
Instructions
1. Load the TI-89 Titanium's batteries. Push and slide down the battery compartment cover on the back of the calculator. Insert four AAA-sized batteries, included with all new TI-89 products, into the compartment and replace its cover.
2. Power on the device. Press its "ON" button. A progress loading bar will appear on the screen. Once its loaded, you'll be greeted with the TI-89's application desktop.
3. Open an application. Use the device's arrow controls, located on the top right side of the calculator's keypad, to highlight different applications. For example, you can open "Graph" to use the calculator's graphing features, or "Clock" to view the time. Once the application you want is highlighted, push the "ENTER" key to launch it.
4. Start graphing. Open the "Graph" application. Press the button with a diamond-shaped symbol, then press the key labeled "Y=". Type the function that you would like to graph. For example, "(abs(x-3)-10)/2" (without quotation marks). Press "F2" and "6" to display the graph.
5. Enter special characters. This is useful when typing mathematical or scientific calculations. Press the "2ND" and "CHAR" keys simultaneously to open the device's characters menu. Use the calculator's arrow keys to choose a character category, like "Math" or "Punctuation." Press "ENTER" to view special characters that you can insert.
6. Return to the application desktop once you're done using an application. Press the "APPS" key on the calculator's keypad. Alternatively, press the "2ND" and "QUIT" keys simultaneously.
7. Turn off the TI-89 Titanium. Press its "2ND" and "OFF" keys simultaneously to power the device down.
Tips & Warnings
- The word "BATT" will appear at the top of the TI-89 Titanium's screen when its batteries are low and need replacing. Before replacing its batteries, always turn off the device. Otherwise, you may lose some of your settings or saved data.
Find the Cube Root on a Graphing Calculator
Determining the root of a number requires finding a value that, when multiplied by itself a certain number of times, results in the original number. For example, the square root of 9 is 3 (3 x 3 = 9). The cubed root of a number is a value that when multiplied by itself three times, results in that number. As an example, the cubed root of 27 would equal 3 (3 --- 3 --- 3 = 27). While some roots can be calculated in your head, it is usually easier to find the cubed root of a number on a graphing calculator.
Instructions:
Using the Math Function
1. Enter the number you need to find the cubed root of into the calculator.
2. Press the "math" key. Scroll though the list of characters until you come to the cubed root sign, which resembles a long division sign with the numeral "3" over a hook at the front of the sign.
3. Hit "enter" to calculate the cubed root.
Without Using the Math Function
1. Enter the number you need to find the cubed root of into the calculator.
2. Press the "to the power" function key. This is the carrot (^) key, generally located just above the numerical keypad.
3. Open a parenthesis set, enter 1/3 and close the parenthesis. For example: X ^(1/3).
4. Press enter to display the cubed root.
Instructions:
Using the Math Function
1. Enter the number you need to find the cubed root of into the calculator.
2. Press the "math" key. Scroll though the list of characters until you come to the cubed root sign, which resembles a long division sign with the numeral "3" over a hook at the front of the sign.
3. Hit "enter" to calculate the cubed root.
Without Using the Math Function
1. Enter the number you need to find the cubed root of into the calculator.
2. Press the "to the power" function key. This is the carrot (^) key, generally located just above the numerical keypad.
3. Open a parenthesis set, enter 1/3 and close the parenthesis. For example: X ^(1/3).
4. Press enter to display the cubed root.
Graph Vertical Lines on Ti84
Graphing calculators simplify the graphing process immensely. Once students begin Algebra II, Texas Instruments' graphing calculators become a fundamental part of the everyday class materials. Since the late 1990s, the preferred calculators for high school students have been the TI-83 and TI-84, both of which function nearly identically. They can graph everything from basic linear functions to complex trigonometric equations. Although most students find it difficult to create vertical lines on the TI-84, the calculator can even do this with the help of a little ingenuity.
Instructions
1. Press the "On" key followed by "2nd" and "Quit" to the right of the "2nd" key. This will return you to your home screen, where you can perform basic operations.
2. Press "Clear" to erase any unnecessary information on your home screen.
3. Press "2nd" followed by "Draw," which is located under the "Pgrm" key.
4. Press the "4" button or select "Vertical" and press "Enter" to activate the vertical lines option. You should now have the word "Vertical" displayed on your home screen.
5. Enter a value corresponding to the vertical line you desire. For example, if you wish to draw x = -3 on your calculator, then you should press the following: "-", "3" and "Enter." Your calculator will then draw the vertical line on the coordinate axis and display it for you.
Tips & Warnings
- To erase your vertical line, press "2nd", "Draw" and "Enter."
- If your graph contains other lines or functions, you may need to press "Y=" and clear any equations previously stored into the calculator.
Instructions
1. Press the "On" key followed by "2nd" and "Quit" to the right of the "2nd" key. This will return you to your home screen, where you can perform basic operations.
2. Press "Clear" to erase any unnecessary information on your home screen.
3. Press "2nd" followed by "Draw," which is located under the "Pgrm" key.
4. Press the "4" button or select "Vertical" and press "Enter" to activate the vertical lines option. You should now have the word "Vertical" displayed on your home screen.
5. Enter a value corresponding to the vertical line you desire. For example, if you wish to draw x = -3 on your calculator, then you should press the following: "-", "3" and "Enter." Your calculator will then draw the vertical line on the coordinate axis and display it for you.
Tips & Warnings
- To erase your vertical line, press "2nd", "Draw" and "Enter."
- If your graph contains other lines or functions, you may need to press "Y=" and clear any equations previously stored into the calculator.
Using a ti 83 plus graphing calculator
The TI-83 Plus Graphic Calculator is a necessary tool for any high school or college-age student taking any advanced level of math. This article will help you learn to use the most basic functions of your TI-83 Plus graphing calculator with ease, and set you on your path to a successful user experience.
Instructions
1. Turning Your Calculator On and Off: The "On" and "Off" button for the the TI-83 Plus Graphing Calculator is, in fact the same button. You might be saying wait! I can turn it on easy enough using that button on the lower left-hand corner of the machine, but when I press it again, it won't turn off! Have no fear. Meet the "2nd" key. This is that little yellow button on the top left corner of the calculator. Notice that right above the "On" button is the word "Off" in yellow letters. We'll talk about what that means in a moment. For now, just press the yellow "2nd" key, then press the "On" button again. Voila! You have turned off the machine.
2. Using the 2nd Key:Remember how the word "Off" was written in Yellow above the "On" button? This is because the "off" function of the calculator uses the yellow "2nd" key to work. If each button only had one function, the calculator would have to be twice its size to do all of the same stuff. This is why most of the buttons have more than one purpose. To get the calculator to perform any of the functions written in yellow above the keys, all you need to do is to first press the "2nd" key. Then, the button associated with that function. It's that easy!
3. Using the Alpha key:In addition to most of the keys having multiple functions assigned to them, many of them also have letters of the alphabet assigned to them as well. These are meant to be used as variables in equations and whatnot. They are written in green above the keys that they are associated with. To access the alphabet letters, simply press the green "Alpha" key, and then press the button associated with the letter you need.
4. Alpha Lock:Sometimes, you may need to type a whole word, and hitting the "2nd" key before each letter can become quite tiresome. To access the "Alpha Lock" mode, simply hit the "2nd" key, and then the "Alpha" key. Then, you can type in alphabet letters without pressing the 2nd key anymore. To exit the alpha lock mode, you will dimply press "2nd" and "Alpha" again, and your calculator will resume its default functions.
5. Using the Enter key:You may have noticed by now that, unlike a normal four-function calculator, your TI-83 Plus Graphing Calculator doesn't have an "=" button. The equal function has been assigned to the "Enter" key, which you will find at the bottom right hand corner of the calculator. After you type a problem into the calculator, you will then hit the "Enter" key to tell the calculator to find a solution. Nothing could be easier than that.
Instructions
1. Turning Your Calculator On and Off: The "On" and "Off" button for the the TI-83 Plus Graphing Calculator is, in fact the same button. You might be saying wait! I can turn it on easy enough using that button on the lower left-hand corner of the machine, but when I press it again, it won't turn off! Have no fear. Meet the "2nd" key. This is that little yellow button on the top left corner of the calculator. Notice that right above the "On" button is the word "Off" in yellow letters. We'll talk about what that means in a moment. For now, just press the yellow "2nd" key, then press the "On" button again. Voila! You have turned off the machine.
2. Using the 2nd Key:Remember how the word "Off" was written in Yellow above the "On" button? This is because the "off" function of the calculator uses the yellow "2nd" key to work. If each button only had one function, the calculator would have to be twice its size to do all of the same stuff. This is why most of the buttons have more than one purpose. To get the calculator to perform any of the functions written in yellow above the keys, all you need to do is to first press the "2nd" key. Then, the button associated with that function. It's that easy!
3. Using the Alpha key:In addition to most of the keys having multiple functions assigned to them, many of them also have letters of the alphabet assigned to them as well. These are meant to be used as variables in equations and whatnot. They are written in green above the keys that they are associated with. To access the alphabet letters, simply press the green "Alpha" key, and then press the button associated with the letter you need.
4. Alpha Lock:Sometimes, you may need to type a whole word, and hitting the "2nd" key before each letter can become quite tiresome. To access the "Alpha Lock" mode, simply hit the "2nd" key, and then the "Alpha" key. Then, you can type in alphabet letters without pressing the 2nd key anymore. To exit the alpha lock mode, you will dimply press "2nd" and "Alpha" again, and your calculator will resume its default functions.
5. Using the Enter key:You may have noticed by now that, unlike a normal four-function calculator, your TI-83 Plus Graphing Calculator doesn't have an "=" button. The equal function has been assigned to the "Enter" key, which you will find at the bottom right hand corner of the calculator. After you type a problem into the calculator, you will then hit the "Enter" key to tell the calculator to find a solution. Nothing could be easier than that.
TI-83 Graphing Calculator Instruction
The TI-83 graphing calculator is a hand-held graphing calculator commonly used for Advanced Placement statistics and college mathematics and statistics classes. The sheer number of possibilities with the calculator can be overwhelming at first; while the TI-83 is powerful and versatile enough to perform advanced functions like integration and finding derivatives, it can also be used for basic mathematics. The first step to understanding how to use the calculator is to familiarize yourself with some basic functions.
Instructions
1. Familiarize yourself with the layout of the TI-83's keypad. The graphing calculator differs from scientific calculators or other types of calculators in that it offers more options, including menu keys and function keys. Menu keys like "Mode," "Stat" and "Matrix" offer choices when you push the buttons; for example, you can press the "Mode" key to change from normal calculator mode to scientific mode, which will return answers as powers of 10. Function keys perform a particular function; for example, the "2nd" key acts like the "Shift" key on a regular keyboard: you'll be able to access the second row of letters and numbers listed above the regular keys when you press it.
2. Locate the keys you would commonly use for your class. In trigonometry and algebra, you might use the "Log" or "Exponent" keys. The "Log" key is located in the far left column of buttons, to the left of the "7" key. Use the "^" key for exponents; for example, press "5" and then "^" and then "2" for 5 squared. The "^" key is in the right-hand column, below the "Clear" button.
3. Look at the catalog if you can't find a key that will perform your needed calculation. The TI-83 catalog contains dozens of different functions. For example, you can find most of the keypad commands in the catalog including "Log" and "Ln," plus there are many commands not found elsewhere on the keypad like the 'Solve" function. This finds the root of expression for a variable, given an initial guess that you type into the calculator along with a lower and upper boundary.
Tips & Warnings
- Many textbooks now come with TI-83 supplements or TI-83 editions. If you are taking a particular mathematics class, ask your teacher or professor if there is a TI-83 supplement to the material.
- Don't type the letters using the alphanumeric keypad to replace a function key. For example, if you want to find the log of 45, you must press the "Log" key: don't press the letters "L" then "O" then "G."
Instructions
1. Familiarize yourself with the layout of the TI-83's keypad. The graphing calculator differs from scientific calculators or other types of calculators in that it offers more options, including menu keys and function keys. Menu keys like "Mode," "Stat" and "Matrix" offer choices when you push the buttons; for example, you can press the "Mode" key to change from normal calculator mode to scientific mode, which will return answers as powers of 10. Function keys perform a particular function; for example, the "2nd" key acts like the "Shift" key on a regular keyboard: you'll be able to access the second row of letters and numbers listed above the regular keys when you press it.
2. Locate the keys you would commonly use for your class. In trigonometry and algebra, you might use the "Log" or "Exponent" keys. The "Log" key is located in the far left column of buttons, to the left of the "7" key. Use the "^" key for exponents; for example, press "5" and then "^" and then "2" for 5 squared. The "^" key is in the right-hand column, below the "Clear" button.
3. Look at the catalog if you can't find a key that will perform your needed calculation. The TI-83 catalog contains dozens of different functions. For example, you can find most of the keypad commands in the catalog including "Log" and "Ln," plus there are many commands not found elsewhere on the keypad like the 'Solve" function. This finds the root of expression for a variable, given an initial guess that you type into the calculator along with a lower and upper boundary.
Tips & Warnings
- Many textbooks now come with TI-83 supplements or TI-83 editions. If you are taking a particular mathematics class, ask your teacher or professor if there is a TI-83 supplement to the material.
- Don't type the letters using the alphanumeric keypad to replace a function key. For example, if you want to find the log of 45, you must press the "Log" key: don't press the letters "L" then "O" then "G."
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