Question

Find the inverse of the function
f(x) = (x - 4)/(x + 4) x does not equal -4

Answer 1

let y = (x-4)/(x+4)

now switch the x's and the y's and solve for y. the expression you get is your inverse.

Answer 2

So the answer would just be (x+4)/(x-4) = x^2+16. right?