(1 point) Consider the function f(x) = x3/5 (x - 5). This function has two critical numbers A

(1 point) Consider the function f (x) = x3/5(x 5). This function has two critical numbers A < B Then A = and B For each of the following intervals, tell whether f(x) is increasing or decreasing. [B, 00) ? The critical number A is ? and the critical number B There are two numbers C < D where either f" (x) = 0 or f" (x) is undefined. a relative maximum a relative minimum neither max nor min Then C = and D = Finally for each of the following intervals, tell whether f(x) is concave up or concave down. (-00, C): ? (D, 00)