Sheintrojasgo Sheintrojasgo Math Answered 3. Which of the following illustrates a polynomial function? A. f(x) = x1/4 + 3x3/4 - 7 B. f(x) = 4x -10 + 5x10 C. f(x) = 12x3 + 6 D. f(x) = + 5x - 120 = 3 - 2x3