Texas Instruments TI-82 Manual page 9

Press
TRACE
to x = 5. (Your screen may look slightly different than
the one shown to the right.)
Continue pressing
10 cannot be obtained by tracing in this view. Therefore,
choose values close to these numbers to obtain estimates
such as A is approximately $1386.80 when x = 7 and A
is about $1637.37 when x = 10.
¥ If you had used the original WINDOW with Xmax = 10 and traced, you should obtain t h e
exact value A = 1500 when x = 10 because 10, not a value close to 10, is shown when tracing.
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and use to move as close as you can
and notice that the values 7 and
Chapter 1
Because the number 5, not a
value close to 5 is shown,
A = $1276.28 when x = 5.
A-9