Is the inverse for the one to one function s(x)= 2/x-8 Is the inverse s^-1(x)=8x+2/x

If the order is reversed when composing two functions, can the result ever be the same as the answer in the original order of the composition? If yes, give an example. If no, explain why not.

Explain how the graph of the inverse of a function is related to the graph of the function.

Verify the inverse of the function f(x)=5x3.