4. Use the six-step procedure (Page 321) to graph the rational function f (x) = -3x+ 12 3x+6 (a) Find the domain. (b) Reduce it to the lowest terms (c) Find the x- and y- intercepts, if they exist. (d) Determine the location of any vertical asymptotes or holes in the graph, if they exist. Analyze the behavior of f(x) on either side of the vertical asymptotes, if applicable. (e) Analyze the end behavior of f(x). Find the horizontal asymptote, if one exists. (f) Use a sign diagram and plot additional points, as needed, to sketch the graph of y = f (x) and the asymptotes. Computer generated graph will not be accepted