Question: what is the inverse of the function f(x)=8x+1?
Answer: Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=x8+18 f - 1 ( x ) = x 8 + 1 8 is the inverse of f(x)=8x−1 f ( x ) = 8 x - 1 .