Zooming In On The Graph - Texas Instruments TI-83 Manual Book

7. Press Í.
The trace cursor jumps to the point on the
function evaluated at
8. Press | and ~ until you are on the maximum
value.
Y
This is the maximum of
values. The actual, precise maximum may lie
between pixel values.
Box with Lid

Zooming In on the Graph

To help identify maximums, minimums, roots, and intersections of
functions, you can magnify the viewing window at a specific location
using the
ZOOM
TI-83 Plus Activities
X=3.8
Y (X)
1
instructions.
.
for the pixel
X
Y
1
555