Texas Instruments TI-80 User Manual - Page 175
The expressions to define the inverse can be, to plot the graph. Press
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5. Enter the expressions to define the line Y=X, about which the graph of the function and the graph of its inverse are symmetric. That is, the reflection of the graph of the function through the line Y=X produces the graph of its inverse. X3î=T Y3î=T 6. Press , to plot the graph. Press +, and then press 9 several times (until the cursor appears). Next, press 8 and 7 several times to move the cursor from a point on the relation to the reflected point and back again. Note: The expressions to define the inverse can be generalized. X1î=Y2î Y1î=X2î Applications 11-11
Applications
11-11
5.
Enter the expressions to define the line Y=X, about which
the graph of the function and the graph of its inverse are
symmetric. That is, the reflection of the graph of the
function through the line Y=X produces the graph of its
inverse.
X3
î
=T
Y3
î
=T
6.
Press
,
to plot the graph. Press
+
, and then
press
9
several times (until the cursor appears). Next,
press
8
and
7
several times to move the cursor from a
point on the relation to the reflected point and back again.
Note:
The expressions to define the inverse can be
generalized.
X1
î
=Y2
î
Y1
î
=X2
î