Identify where f is increasing and where f is decreasing.f(x) = x2 + 8x
A. increasing: [8, ?); decreasing (-?, 8]
B. increasing: (-?, -4]; decreasing [-4, ?)
C. increasing: [-4, ?); decreasing (-?, -4]
D. increasing: (-?, 8]; decreasing [8, ?)
Answer: C
Mathematics
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