For the graph of the following functions, find the domain, the vertical and horizontal asymptotes (if any), and approximate the x- and y-intercepts (if any). a) ya 2x+4 x-1 x²-x-2 x²+2x-3 c) y=- 1-x e) y=-x-6 -2 b) c) f(x)=1¹-2 d) y= 3x² 1) y=-9 H 2. Each of the following functions has a "hole" in its graph. Sketch the graph, and show where the hole appears. b) f(x)= x²-1 x+1 600 4-x² d) f(x)= x+2