Question

How do you verify if `f(x)=x+4; g(x)=x-4` are inverse functions?

Answer 1

`f circ g = text{Id} = g circ f`

Explanation:

`f(g(x)) = g(x) + 4 = x - 4 + 4 = x`

`g(f(x)) = f(x) - 4 = x + 4 - 4 = x`

`h(x) = x => h =` Id