Help me plz now

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation