Question 19 of 31 Find the volume of the solid generated by revolving the region bounded by the graphs of y = 2x- + 1 and y = 2x + 8 about the x-axis. The volume of the solid generated by revolving the region bounded by the graphs of y = 2x + 1 and y = 2x + 8 about the x-axis is cubic units. (Round to the nearest hundredth.)