Texas Instruments TI-84 - Manual (Page 479)

Chapter 17: Activities 476
3. Press
~ to trace along the curve to a
point to the right of the maximum, and
then press
Í.
A 3 at the top of the screen indicates the
selected bound.
A Guess? prompt is displayed.
4. Press
| to trace to a point near the
maximum, and then press
Í.
Or, press 3
Ë
8 , and then press
Í to
enter a guess for the maximum.
When you press a number key in TRACE ,
the X= prompt is displayed in the bottom-
left corner.
Notice how the values for the calculated
maximum compare with the maximums
found with the free-moving cursor, the
trace cursor, and the table.
Note: In steps 2 and 3 above, you can
enter values directly for Left Bound and
Right Bound, in the same way as
described in step 4.