f(x) = x2 − 16. Find f−1(x).

Question

i dont understand how to do the problem at all. its soooo confusing

Answer 1

Your class will have shown you a procedure for finding the inverse of a function, provided that function passes the Horizontal Line Test.

 

f(x) appears to be a quadratic (parabola) and so it has no inverse unless its domain is restricted (x≥0).