1) find the volume obtained by rotating the region bounded by x=0 and x=y-y^2 about the y-axis.

-I was able to use the disc method and come up with the formula: Pi*(1/2*y^2-1/3*y^3) but i do not know where to go from here. finding the intervals would be my guess but i don't know how.

2)find the volume obtained by rotating the region bounded by the x-axis, y=1/x, x=1, and x=2 about the line y=1.

-I am completely lost on this.