Find the volume of the solid generated by revolving the region bounded by the parabola y = −x 2 /9 and the line y = −1 about the following lines. Put answers in exact terms, using pi if necessary. a....

Find the volume of the solid generated by revolving the region bounded by the parabola y = −x²/9 and the line y = −1 about the following lines. Put answers in exact terms, using pi if necessary.

a. The line

y = −1