5 for 5: Calculus AB Day 9 (-4,11) R S T The function f is defined and differentiable on the interval [-4,5]. The graph of f is shown in the figure above and has horizontal tangents at x=0,x=2,x=3, and x = 4. The regions R, S, and T have areas of 12,15 and 3 respectively. Let g be the functioned defined by g(x) = [*(t)dt. e2x AB4: a. Let h(x) Find h'(-2). g(x) 4g(2x)+6x b. Find lim x--2 4-x