Volume of shell: y=x²+1 rotated around y=-1

[bonfire09]

Homework Statement

I have to sketch a vertical or horizontal strip and state an expression for the volume of the shell formed by its rotation. Do not solve

y=x^2+1 x=0
y=1 x=1

around y=-1

Homework Equations

The Attempt at a Solution

I'm really lost because I don't know how to get started. I think dy works but I can't get it right. Any help will be great thanks.

 

[haruspex]

Have you figured out the shape in the plane? As a volume of revolution?
Pls post what you have for the integral so that we can see where you are stuck.