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| PAGE: 343 | SET: Exercises | PROBLEM: 2 |
The functions are 
and 
.
A function 
is the inverse of the function 
if 
for each 
in the domain of , and 
for each in the domain of .
Since 
, the functions and are inverse functions.
Draw a coordinate plane.
Graph the functions 
and 
.
Graph:
Observe the graph : and have reflective property.
And the graphs of the two functions symmetric about the line 
.
Hence the functions and are inverse functions of each other.
and are inverse functions.
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