l/Test 4 Build A ) 1. Suppose we have fx) -Page 2 of 5- +24. (a) (8 pts) Find all critical points of f(x). 32) 2) l2(ã 2-8"k +-4): O//w를 (b) (8 pts) Make a table showing the intervals on which the graph of fiz) is increasing or decreasing. For this, use the template below, completing each item for each of your intervals. Interval Test value of e)Sien of f(e) Increase / decrese behavior of fe you found in part (a) as a local maximum, a local minimum, or neither. Justify your conclusions by referring to your table in (b). (e) (8 pts) Use the first derivative test to identify each of the critical points of f(x) that