Considerthe function r] = 9: + 4: 1. (a) f has a relative maximum at the point E (h) f has a relative minimum at the point[ Consider the function f(x) = -5x- + 8x -1. (a) Find all critical numbers coff. c = (b) The local maxima values of f are: (c) The local minima values of f are: noney = f(x) Consider the graph of f () given below. (a) Analyzing the graph, if g(x) = f(x), then g is decreasing for a E (b) Analyzing the graph, if h'(x) = f(x), then h is decreasing for I E Note: Input U, infinity, and -infinity for union, oo, and -oo, respectively