To find the maximum, press 2
nd
CALC as shown below:
You should obtain the following on your screen:
We want to select option 4: maximum by either pressing 4 or scrolling
down using the arrows until the 4 is
highlighted and pressing ENTER.
Upon selecting 4: maximum, you
obtain the following:
We can see a local maxima occurs
near x = -1. The query Left
Bound? from the calculator means
the TI-83 wants you to select a point
somewhere left of the local maxima.
Use the arrows to move the cursor
anywhere left of the local maxima.
2nd
above
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