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.