Solution 10379: Finding the Zero of a Function using the TI-82.
How do I find the zero of a function with the TI-82?
Use the root instruction to find the zero on the TI-82. Please refer to the example below.
Find the zero of y=2x+4
Graph the equation:
1) Press [Y=]. 2) Input the equation. 3) Press [GRAPH].
Find the zero:
1) Press [2nd][CALC]. 2) Move the cursor to the x value to specify the lower bound using the left or right cursor and press [ENTER]. 3) Move the cursor to the x value to specify the upper bound using the left or right cursor and press [ENTER]. The screen will show the zero, which is (-2, 0).
Please see the TI-82 guidebook for additional information.
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