How to Display Functions in a Table on the TI-84 Plus

After you’ve entered the functions in the Y=, you can have the TI-84 Plus graphing calculator create a table of functional values.

To create a table, perform the following steps:

1. Highlight the equal sign of those functions in the Y= editor that you want to appear in the table.

   Only those functions in the Y= editor that are defined with a highlighted equal sign appear in the table. To highlight or remove the highlight from an equal sign, press [Y=], use the

   

   keys to place the cursor on the equal sign in the definition of the function, and then press [ENTER] to toggle the equal sign between highlighted and not highlighted.

2. Press [2nd][WINDOW] to access the Table Setup editor.

   

   The Table Setup editor appears.

3. Enter a number in TblStart, and then press [ENTER].

   TblStart is the first value of the independent variable x to appear in the table. Here, TblStart is assigned the value 5.

   To enter the number you have chosen for TblStart, place the cursor on the number appearing after the equal sign, press the number keys to enter your new number, and then press [ENTER].

4. Enter a number and then press [ENTER].

   

   gives the increment for the independent variable x. Here

   

   is assigned the value –1.

   To enter the number you have chosen, place the cursor on the number appearing after the equal sign, press the number keys to enter your new number, and then press [ENTER].

5. Set the mode for Indpnt and Depend.

   

   To change the mode of either Indpnt or Depend, use the

   

   keys to place the cursor on the desired mode, either Auto or Ask, and then press [ENTER].

   To have the calculator automatically generate the table for you, put both Indpnt and Depend in Auto mode. The table shown in the image was constructed in this fashion.

6. To create a user-defined table, specify which values of the independent variable x appear in the table.

   

   If you want to create a user-defined table in which you specify which values of the independent variable x appear in the table — and then have the calculator figure out the corresponding values of the functions — put Indpnt in Ask mode and Depend in Auto mode. The table here was constructed in this fashion.

   The other combinations of mode settings for Indpnt and Depend are not all that useful, unless you want to play a quick round of “Guess the y-coordinate.”

7. Press [2nd][GRAPH] to display the table.

   When you display the table, what you see on the screen depends on the modes you set for Indpnt and Depend.