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Below is the graph of the derivative of a function defined on the interval (0,8). You can click on the graph to see a larger version in a separate window. Refer to the graph to answer each of the following questions. For part (A), use interval notation to report your answer. (If needed, you use U for the union symbol.)

(A) For what values of in (0,8) is concave down? (If the function is not concave down anywhere, enter "{}" without the quotation marks.)

Answer:

(B) Find all values of in (0,8) is where has an inflection point, and list them (separated by commas) in the box below. (If there are no inflection points, enter -1000.)

Inflection Points: