This preview shows page 1. Sign up to view the full content.
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).
TI83 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 12digit accuracy for all
computations performed. TI83 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. TI83 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.) TI83 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...
View
Full
Document
This document was uploaded on 12/31/2013.
 Fall '13

Click to edit the document details