PLEASEEE HELP The figure above shows the graph of f', the derivative of a twice-differentiable function f, on the interval (-3, 4). Answer the following questions based on the graph of f'.
a) Find all x-coordinates at which fhas a relative minimum. Justify your answer.
b) On what open intervals contained in (-3, 4) is the graph of f both concave up and decreasing?
Justify your answer.
c) Find the x-coordinates of all points of inflection on the graph off.
d) What is the average rate of change of f'between x = 0 and x = 3?

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