Question

Medal for help! Finding volume using disks?
x=2y-y^2 and x=0, rotated about the y-axis

Answer 1

Well, what exactly is being asked for you to do? Rotating could mean that there is a change in the variable x.

Answer 2

https://www.khanacademy.org/math/calculus/solid_revolution_topic/disc-method/v/disk-method-around-x-axis

Answer 3

∫ with 2 on top and zero on bottom x^2 * dx is the formula I believe.

Answer 4

How did you get x^2 dx?

Answer 5

I understand where 0 and 2 are coming from since they're points of interception for the 2 graphs

Answer 6

Solids of Revolution? c: Oooo these are fun!

Answer 7

brb

Answer 8

I guess I'll just leave it to @zepdrix. Because I don't know this and he got a 99! damn!

Answer 9

( :

Answer 10

Thanks for trying to help :)