Dalia S.

asked • 06/19/14

Determine the x-coordinates and find the intervals on which f is increasing and decreasing

Let f(x)=4x^3+5. Find the open intervals on which f is increasing (Decreasing). Then determine the x-coordinates of all relative maxima and minima 
1. f is increasing on which interval?
2. f is decreasing on which interval?
3. The relative maxima of f occurs at x=
4. The relative minima of f occurs at x= 
Please provide final answers. 

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