Graph the polynomial function f(x) = _ Then answer parts a and b. Choose the correct graph below. OA. a) Determine the largest open interval of the domain for which the function is increas A. The function is increasing on ( ( Type your answer in interval notation.) OB. The function is not increasing on any interval of the domain by Determine the largest open interval of the domain for which the function is decreas A. The function is decreasing on (Type your answer in interval notation.) (OB. The function is not decreasing on any interval of the domain