**EXPERT ANSWER**

# 7. Use the graph of f’ on (-7, 6] to find the following. a. Find f'(-4) and f” (-4). (2 points) b. At which x values does f have a relative maximum on (-7, 0)? (4 points) C. Find all intervals on which the graph of fis concave upward and all intervals on which the graph of fis concave downward. Explain why. (6 points) d. Find each point of inflection. (4 points)

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