Determine where the function is concave upward and where it is concave downward. (Enter your answer using interval notation. If

Question

Determine where the function is concave upward and where it is concave downward. (Enter your answer using interval notation. If an answer does not exist, enter DNE.)
f(x) = 3x4 - 18x³+x-6
Concave upward:
Concave downward:

Kunduz · Accepted Answer

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