Determine where the given function is concave up and where it is concave down. f(x) = -x3 + 8x + 2
A. Concave down on (-?, 0), concave up on (0, ?)
B. Concave up on (-?, 2), concave down on (2, ?)
C. Concave down on (-?, 2), concave up on (2, ?)
D. Concave up on (-?, 0), concave down on (0, ?)
Answer: D
Mathematics
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