Question

Which of the following pairs of functions are inverses of each other?

Answer 1

C.

Let g(x) = y. This gives you y =
`\sqrt[3]{ (x-6)/(8) }`

Manipulating the above equation gives you x = 8y^3 + 6 which is f(y), meaning that f(g(x)) = x so f and g are inverses of each other.