-Problem 5. (1 point) Intervals of Increase and Decrease and Local Extrema Ina: Answer the following questions using the function f(a:) = 2 a: The derivative of the given function is mm) = The critical point(s) of f are 9; = NOTE: Enter values as a comma separated list f needed). if you believe the answer is none type "none ". f has a relative (local) maximum value of that occurs at m = f has a relative (local) minimum value of that occurs at a: = NOTE: Enter values as a comma separated list f needed). if you believe the answer is none type "none ". f is increasing on and decreasing on NOTE: State the open intervals of increase and/or decrease as a comma separated list (if needed)