Use the shell method to find the volume of the solid generated by revolving the region bounded by the curves and lines about the x-axis. X=y2, X=-3y, v=2, v20 The volume is . [Type an exact answer, using 1-: as needed.) X Use the shell method to find the volume of the solid generated by revolving the region bounded by y = 3x, y = - - and x = 3 about the y-axis. X The volume of the solid generated by revolving the region bounded by y = 3x, y = - 7, and x = 3 about the y-axis is cubic units. (Type an exact answer, using it as needed.)