Question: Please help me. Thank you. D Question 15 4 pts Let f(a) be a continuous function with horizontal tangent lines at x = 0 and
Please help me. Thank you.

D Question 15 4 pts Let f(a) be a continuous function with horizontal tangent lines at x = 0 and x = 2. If f" (a) = 423 - 6x2, which of the following statements is/are true? P. According to the Second Derivative Test, f(a ) has a relative maximum at x = 2. Q. f(x) is concave up on the interval (, co) only. R. f (a) has inflection points at both a = 0 and ac Be sure to consider your number line from Q. O P and Q only O Q only O Q and R only O P and R only O P, Q and R
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