Question: In Problems 25-34, find the intervals on which the graph of f is concave upward, the intervals on which the graph of f is concave

In Problems 25-34, find the intervals on which the graph of f is concave upward, the intervals on which the graph of f is concave downward, and the inflection points.
26. f(x)= x4 + 6x
28. f(x)= - x3 - 5x2 + 4x - 3
30. f(x)= x4 - 2x3 - 36x + 12
32. f(x)=In (x2 + 6x + 13)
34. f(x) = e3x - 9ex

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26 fx x 4 6x f x 4x 3 6 f x 12x 2 0 for all x Thus f is concave upward for all x there are no inflec... View full answer

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