The function f(x) = (x + 8) is one-to-one. a. Find an equation for (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.) O A. f (x) = , for x2 O B. F1 ( x ) = for all x O c. f (x)= for x * OD. F 1 (x) = , for x s b. Verify that the equation is correct. F ( F 1 ( x ) ) = 1 ( ) and F 1 ( f( x ) ) = f' () Substitute. = Simplify. The equation is