Find the volume of the solid generated by revolving the following region about the y-axis. The region in the first quadrant bounded above by the parabola y = 3x, below by the x-axis, and on the right by the line x = 2. V= (Type an exact answer, using as needed.) Find the volume of the solid generated by revolving the following region about the given axis. The region in the first quadrant bounded above by the curve y = x, below by the x-axis, and on the right by the line x = 1, about the line x = -4. V= (Type an exact answer, using as needed.)