1. The problem statement, all variables and given/known data Use shell method to find the volume. y = 3 - (x^2 / 3) where (x > 0) x = 0 y = 3/2 roated around x = 3 2. Relevant equations 2Pi * Integration of (radius)*(length * width) = Volume 3. The attempt at a solution http://img300.imageshack.us/img300/8935/picture1gt4.jpg [Broken] Radius: (x - 3) Height: Function Width: Delta X This is how I see the image. 2 * Pi Integrationg from 0 to 3 [ (x-3)*(3 - (x^2/3)) ]dx - 2 * Pi * Integration from ? to ? volume of the top piece I'm not sure how to get the top piece :(.