Answer:
The graph in the attachment.
The inverse is not a function.
Explanation:
The graph of the function and its inverse are symmetric with respect to the line y = x.
The inverse is not a function because for x = 3 we has two values of y: -3 and -4 (look at the picture).
A function is a relation that associates each element x of a set X to a single element y of another set Y.