Question

Let f: R → R be defined as f(x) = 10x + 7. Find the function g: R → R such that g o f = f o g = I_R .

Answer 1

It is given that f: R → R is defined as f(x) = 10x + 7.

Therefore, for any y  ∈ R, there exists x=(y−7)/10∈R such that