CPM Student Tutorials / TI-84 Graphing Calculator / Functions

TI-84: Entering Equations

Updated on Jan 10, 2023

TI-84 Video: Entering Equations (YouTube) (Vimeo)

1. Be sure that all of the Plots are turned off.

Go to: [2nd] [STAT PLOT]. Select "4: PlotsOff". Then press [ENTER]. This will turn off any plots that were on.

Be sure that all of the Plots are turned off.

2. To clear functions, select them and press [CLEAR].

To clear functions, select them and press [CLEAR].

3. Enter functions in Y1. You can enter numerous functions by using the down arrow.Use the following hints for entering functions.

Use [x,t,theta,n] to type the variable "x".
Use the above and then the x squared button to type "x squared".
Use the caret key for variables with higher powers than "2".
Use the (-) at the bottom of the keyboard for a negative sign.

Enter functions in Y1.  You can enter numerous functions by using the down arrow.Use the following hints for entering functions.

4. Disable a function by selecting the "=" sign and press [ENTER].

Note: To enable a function, select the "=" sign and press [ENTER].

Disable a function by selecting the "=" sign and press [ENTER].

5. To change the "look" of the function, select the symbol in front of the Y=. Then press [Enter] to go through the list of options.

Note: The second function will be bold when drawn.

To change the "look" of the function, select the symbol in front of the Y=.  Then press [Enter] to go through the list of options.

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