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