Help with part B

The function f(x) = 14x is one-to-one. 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 fill in the answer box(es) to complete your choice. (Simplify your answer. Use integers or fractions for any numbers in the expression.) OA. f ( x ) = , forxs O B. f- 1 ( x ) = for x 2 Oc. f ( x ) = for x * OD. f ( x ) = X for all x 14 b. Verify that the equation is correct. f ( f - 1 ( x ) ) = 1 ( 1 and f - 1 ( f ( x ) ) = f - 1 ( D Substitute. = = Simplify