Calculus Graph Interpretation FRQ?

Posted on 2015-12-04 06:44:00 in Chemistry by MORGAN LEE

The figure above shows the graph of f ', the derivative function of f. The domain of f is the set of all real numbers x such that -10 ? x ? 10.

a. For what values of x does the graph of f have a horizontal
tangent?
b. For what values of x in the interval (-10, 10) does f have a
relative maximum?
c. For what values of x is the graph of f concave downward?

Can anyone solve this and list the steps? Thank you so much!

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