Do as indicated. Show all necessary solutions for full credit. Enclose/box your final answer. 1. For each of the following functions, determine: (a.) the critical numbers of f (b.) all relative extrema of f (c.) the intervals on which f is increasing or decreasing (d.) the intervals on which f is concave upward or concave downward (e.) the coordinates of all points of inflection 2. f(x) = VP+x+1 3. /(x) = (273-1)2