The function is .

Rewrite the function as .

Graph : \ \

1. Draw a coordinate plane.

2. Draw the line .

Observe the above graph :

In the graph the black line is horizontal line.

It is possible to find a horizontal line that intersects the graph of function at more than one point.

So, the function is not a one - to - one function and does not have an inverse function.

No, the function does not have an inverse function.