Texas Instruments Titanium TI-89, User Manual

Page: 328 / 977

Basic Function Graphing 325
6. Set the lower bound for x. Either use
A
and
B
to move the cursor to the lower bound
or type its x value.
Note:
If you do not press
A
or
B
, or type an x value when setting the lower and
upper bound,
xmin
and
xmax
will be used as the lower and upper bound,
respectively.
7. Press
¸
. A
4
at the top of the screen marks the lower bound.
8. Set the upper bound, and press
¸
.
The bounded area is shaded. To erase
the shaded area, press
†
(
ReGraph
).
Below
function
Above
function