Question

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specific line.
y=x+1, y=0, x=0, x=2; about the x-axis

Answer 1

did you sketch the shape and volume ?

Answer 2

ok. You can use thin "plates" with area pi r^2 and thickness dx
and add up the volume of the plates (stacked sideways from x= 0 to x=2)

Answer 3

what is the radius?