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Note 3A • Tables (continued)
you enter the equation
Y
1
that corresponds to a y-coordinate of 20, but 20 is not in the current table.
a. Press
2nd
[TblSet]
b. Start with a guess of a reasonably close x-coordinate and enter that
value in
, in this case, 0, and then enter a large value in
TblMin
such as 10.
c. Look for y-coordinates on either side of your search value. Arrow so
that the value just less than your search value is at the top of the list.
d. Return to
2nd
[TblSet]
value you put at the top of the list is now in
e. Go back to step c and repeat until you have found the search value, in
this case, 20.
32
Discovering Algebra Calculator Notes for the Texas Instruments TI-82
and you want to find the x-coordinate
11
x 4.7
.
∆Tbl
and reduce
by a factor of 10. Notice that the
∆Tbl
,
.
TblMin
TI-82
©2002 Key Curriculum Press
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