7.) Let R be the region bounded by the lines, y = vx - 4 , X = 8, and the x-axis (a) (5 pts) Set up, but do not evaluate, the integral that would find the volume of the solid generated by rotating this region around about the line y = 2. (b) (5 pts) Set up, but do not evaluate, the integral that would find the volume of the solid generated by rotating this region around about the x = -2