$\"\"$

The functions are $\"\"$ and $\"\"$ .

Draw a coordinate plane.

Graph the functions $\"\"$ and $\"\"$ in the same set of coordinate axes.

Graph :

$\"\"$

Observe the above graph :

The functions $\"\"$ and $\"\"$ have reflective property.

So they are inverses of each other.

$\"\"$

Graph :

$\"\"$

$\"\"$ and $\"\"$ are inverse functions.