Find the volumes of the solids generated by revolving the region between y = 41x and y = 2 - about a) the x-axis and b) the y-axis. The volume of the solid generated by revolving the region between y = 4 1x and y = 2 about the x-axis is cubic units. (Round to the nearest tenth.) 2 The volume of the solid generated by revolving the region between y =4 \\x and y = - 2 about the y-axis is cubic units. (Round to the nearest tenth.)