TI-83 Plus Activities 554
3. Press |, ~, }, and † to move the free-
moving cursor to the apparent maximum of the
function.
As you move the cursor, the X and Y coordinate
values are updated continually.
4. Press r. The trace cursor is displayed on
the Y1 function.
The function that you are tracing is displayed in
the top-left corner.
5. Press | and ~ to trace along Y1, one X dot at
a time, evaluating Y1 at each X.
You also can enter your estimate for the
maximum value of X.
6. Press 3 Ë 8. When you press a number key
while in TRACE, the X= prompt is displayed in the
bottom-left corner.