Let f(x)=8(Sqrt(x))−4x  for x>0. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1.  f is increasing on the intervals   2.  f is decreasing on the intervals   3.  The relative maxima of f occur at x =   4.  The relative minima of f occur at x =

q.2     Either f(x) a graphically defined function.   Choose all points in the domain of f(x) (values of x) where f(x) is not continuous.

A function and its graph are given. f(x) = + 4x2 - 20x – 20 y 250 200 150 100 50 - 10 -5 5 –50 (a) From the graph, estimate where f"(x) > 0. (Enter your answer using interval notation.) Estimate where f"(x) o. (Enter your answer using interval notation.) Find where f"x) < 0. (Enter your answer using interval notation.) Find where f"(x) = 0. (Enter your answers as a comma-separated list.) Find where r(x) has its relative maxima and relative minima. (Enter your answers as comma-separated lists. If an answer does not exist, enter DNE.) relative maxima relative minima