- a. f(x) = 2x5 b. f(x) = 3x4 – 5 c. f(x) = 4x + 14. Which polynomial functions in factored form shows the sketch of the graph below? a. (3 + 2)((x + 1)(36— 1) C. (x + 2)((x - 1)(x - 1) - w - - - b. (x − 2)((x + 1)(x - 1) d. (x − 2)((x - 1)(x – 1 aron of the polynomial function y = –2x3 + 3x + 1, which will be your possible sketch? y = to define a polynomial function, what shoulde be n if f (x)= xn?​