Question: In Problems 47-54, find the intervals on which f(x) is increasing and the intervals on which f(x) is decreasing. Then sketch the graph. Add horizontal

In Problems 47-54, find the intervals on which f(x) is increasing and the intervals on which f(x) is decreasing. Then sketch the graph. Add horizontal tangent lines.
48. f(x) = 2x2 - 8x + 9
50. f(x) = x3 - 12x + 2
52. f(x) = x3 + 3x2 + 3x
54. f(x) = -x4 + 50x2

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48 fx 2x 2 8x 9 fx 4x 8 f is continuous for all x and fx 4x 8 0 x 2 Thus x 2 is a partition number f... View full answer

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