Question

What is one to one and how do i solve this in steps?

Answer 1

`f(x) = (7)/(x+2)`


`y = (7)/(x+2)`


`y(x + 2) = 7`


`xy + 2y = 7`


`xy = 7 - 2y`


`x = (7 - 2y)/(y)`


`f^(-1)(x) = (7 - 2x)/(x)`