1. The problem statement, all variables and given/known data Suppose f : R→R and g : R→R where g(x) = 3x + 5 and g o f(x) = x^2 - 7. Find the rule for f. 2. Relevant equations 3. The attempt at a solution These seem pretty simple, but I want to make sure I'm on the right track. 3(f(x)) + 5 = x^2 - 7 3(f(x)) = x^2 - 12 f(x) = (x^2 - 12)/3 How does this look?