Use calculus to find any critical points and inflection points of the given function. Then determine the concavity of the function and the intervals over which it is increasing/decreasing.f(x) = 9 ( 1 - e-x) for nonnegative values of x
A. Critical points: none
Inflection points: none
Concavity: concave down for all x ? 0
Increasing: increasing for all x ? 0
B. Critical points: none
Inflection points: none
Concavity: concave down for all x ? 0
Decreasing: decreasing for all x ? 0
C. Critical points: none
Inflection points: none
Concavity: concave up for all x ? 0
Decreasing: decreasing for all x ? 0
D. Critical points: none
Inflection points: none
Concavity: concave up for all x ? 0
Increasing: increasing for all x ? 0
Answer: A
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