Education Technology

Solution 34516: Finding the Zero of a Function Using the TI-84 Plus C Silver Edition.

How do I find the zero of a function using the TI-84 Plus C Silver Edition?

To find the zero of a function using the TI-84 Plus C Silver Edition, the zero command will need to be used. Please refer to the following example.

For Example: Find the zero of the function: y = 2X + 4

1) Press [Y=].
2) Enter the function.



3) Press [GRAPH].



4) Press [2nd] [CALC] [2].



5) When prompted for "Left Bound?", specify the left bound for x using the arrow keys or enter a value and press [ENTER].
6) When prompted for "Right Bound?", specify the right bound for x using the arrow keys or enter a value and press [ENTER].
7) When prompted for "Guess?", move the cursor close to the zero value or enter a value and press [ENTER].



The screen will show the zero, which is (-2, 0).

Please see the TI-84 Plus C Silver Edition guidebook for additional information.