SOLIDS OF REVOLUTION. Find the volume. Write your answer in terms of pi (nt). Show your complete Solution. A. DISK METHOD 1. y = Vx, x = 1,x = 4 about the x axis 2. y = x3, y = 1,x = 0 3. y = 2x, x = 0, x=3 B. WASHERS METHOD 1. y = 2x2, y = x3 x =0 x=2 2. y = = + x , y = x, x=0, x=2