Problems 1 - 12, Find the volume of the region bounded by the given functions and revolved about the given axis. 1. y = x2 - 4x; y = 0 about the x-axis eixe (and Jund 2. y = x ; y = 3; x = 0 about the y-axis 3. y = V9 - x2 ; y = 0; x =0 about the x-axis