TI-84: Entering Equations

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.