X+ 14 The function f(x) = X-7 is one-to-one. For the function, 1 a. Find an equation for f(x), the inverse function. b. Verify that your equation is correct by showing that f(f(x)) =x and f(f(x))=x. a. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Simplify your answer. Use integers or fractions for any numbers in the expression.) O A. f(x)= for all x for xs OB. f(x)= OC. f'(x) = OD. f(x) = for x = for x Verify that the equation is correct. f(f*(x)) = f ( and and f(f(x))=f-'O Substitute Simplify - The equation is​