NEED HELP. What function has an inverse function that is well-defined? What process should I go through to determine the original function if all I was given were the inverse function and a table of values for that function?

For instance, if the point (1, 3) is on the graph of the function, then the point (3, 1) is on the graph of the inverse. That is, if you start with x = 1, you will go to y = 3; then you plug this into the inverse, and you'll go right back to x = 1, where you started from.

its definatley   this on your answer choice?