knowledge of functions and of the calculator.
In order to view the function on the left, first press ZOOM 6 and then ENTER. Your graph will look like the
one below.
Now, set your window by pressing the WINDOW key and changing the values to look like the ones
Below.
Your graph should look like the one above.
Be able to find the zeros, (also known as roots or x-intercepts) using the calculation menu.
Problem: Find the zeros of
.
1. Enter the function into the calculator. Be sure to press ZOOM 6 in order to go back to the standard screen.
2. Press CALC (2
nd
TRACE) to access the calculate menu
3. Press 2 (or cursor down) and hit ENTER for ZERO. Your screen will now look like this:
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