Finding intervals, concavity, and inflection points

timer Asked: Oct 22nd, 2015

Question description

Consider the following function.

f(x) = (3 − x)ex
(a) Find the intervals of increase or decrease. (Enter your answers using interval notation.)
(b) Find the intervals of concavity. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
(c) Find the point of inflection. (If an answer does not exist, enter DNE.)

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