im confused someone please help? (calc 1)

[calm hound]

help

[zenith compass]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with: ```diff
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[somber hare]

How did you try solving it

[errant nacelle]

try using the disk method

[plush geyser]

$\int\limits_{2}^{8} \pi y^2 dx$

[frigid basin]

Altair

[plush geyser]

Alternatively you could use a theorem that says the volume from revolution of a surface is the area of the surface times 2πr where r is the distance of the centroid of the surface to the axis of revolution

Here x is the axis of revolution so r is the y-th coordinate of the centroid of your area. This is the formulas for the centroid

So its $Volume=2π\Bar{y}A$

[frigid basin]

Altair

[calm hound]

+close