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.
Graph:
\Graph the two functions.
\Draw the coordinate plane.
\Plot the points of
and connect the curve.
Plot the points of
and connect the curve.

Observe the graph:
and
have reflective property.
and
are inverse functions.