Find the critical numbers of the function f(x) = x6(x − 4)5. x = 0 Correct: Your answer is correct. (smallest value) x = 2 Incorrect: Your answer is incorrect. x = 4 Correct: Your answer is correct. (largest value) (b) What does the Second Derivative Test tell you about the behavior of f at these critical numbers? At x = , the function has . (c) What does the First Derivative Test tell you? (Enter your answers from smallest to largest x value.) At x = , the function has . At x = , the function has . At x = , the function has .