2 select a conic section from the conics main menu 3

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Unformatted text preview: quation requires). 2. Select a conic section from the CONICS main menu. 3. Select an equation. 4. Enter values for each of the required parameters listed. Use ` and h to move from one parameter to the next. Tip If you enter a value that is invalid for the specific equation, an error screen displays when you attempt to graph the conic section. 5. Press T. 6. Select Zoom Conic and view the graph. 7. Press T. 8. Select other zoom settings to see the differences in the graph. The graph is displayed after a zoom setting is selected (except for zoom settings that require another entry, such as Zoom In or Zoom Out). TI-83 Plus Conic Graphing Page 19 Graphing a Conic Section When you graph a conic section, you select an equation and input values for the parameters. For example, if you select the circle equation (X1H) 2 + (Y1K) 2 = R 2, you input values for H, K, and R. Keep the following points in mind when you input the parameters: • Conic Graphing only supports real numbers; complex numbers are not supported. • You can input a value with an unlimited number of digits, but Conic Graphing displays a rounded number to 14 digits. • Conic Graphing works with 12-digit accuracy for all computations performed. TI-83 Plus Conic Graphing Page 20 When you enter parameters, you can access the MATH (o), TEST (\ ) and VARS (r) menus. (For example, you might want to use the cube root or absolute value options from the MATH menu or test a value using an option from the TEST menu.) However, when you display either of these menus, both the graphing keys and their secondary functions are ignored. Menu options that are not applicable to Conic Graphing are also ignored. To return to Conic Graphing from these menus, press s. Caution If you press \  to exit the MATH, TEST, or VARS menu, you will exit the Conic Graphing application. To graph a conic section: 1. Make sure the conic mode is set appropriately for your equation. 2. Select a conic section from the CONICS main menu. 3. Select an equation for the conic section. Tip A conic section may have more than one equation option for each mode. If an arrow appears below the equation number, you can press h to see more equations. TI-83 Plus Conic Graphing Page 21 4. Enter values for each of the required parameters listed. Press ¯ to move the cursor to the next parameter. You can also press ` and h to move from one parameter to the next. Note The number and type of required parameters change, depending on the equation you select and on the conic mode setting. If you enter an invalid value, an error message is displayed. 5. Press V to graph the conic section. Note Plot selections (Plot1, Plot2, Plot3) are disabled in Conic Graphing. 6. Press R to escape from the graph screen. (The ESC option is not displayed on the graph screen, but is still available.) TI-83 Plus Conic Graphing Page 22 Tracing a Conic Section 1. Press U. A cursor appears on the conic section. 2. Press _ or a to trace along the conic section. Note • Press ` or h to move from one part of a hyperbol...
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This document was uploaded on 12/31/2013.

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