To find the zeros of a function, you are looking for the points of intersection of the graph of the function and the x-axis
| First enter the function into the y editor |
Set the window to show the graph |
Graph | Presss 2nd CALC 2 |
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| When asked for the left bound, move the cursor left of the zero, then press ENTER |
When asked for the right bound, move the cursor right of the zero, then press ENTER |
When asked for a guess, move the cursor close to the zero, then press ENTER |
The calculator will find the zero |
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Note: For those with a TI 82, The calculator finds the ROOTS not ZERO, and where it askes for a left bound or right bound, the TI82 asks for a lower bound or upper bound.
© JoanBookbinder 1998