help!!

what is the volume for this:
x+(y^2)=16
solve this using the shell method.
i've tried it but my limits is from -4 to 4 which will result to zero, so how will i solve this?

Question

help!!

what is the volume for this:
x+(y^2)=16
solve this using the shell method.
i've tried it but my limits is from -4 to 4 which will result to zero, so how will i solve this?

anonymous · Answer

x-axis

zale101 · Answer

The domain of this graph is not restricted, it goes to negative infinity..

zale101 · Answer

The volume might be infinite in this case.

irishboy123 · Answer

around x axis, you are integrating y = +sqrt(16-x) in limits x = 0, 16 as a volume of revolution

ie integral π (16 - x) dx in limits stated.  it its actually about y (but you say x axia above), then just switch it round.  OTOMH 128π

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