# Triple integral help.

• Nov 28th 2011, 12:21 PM
Kuma
Triple integral help.
Can someone please explain what this means? I tried drawing out the region but it still doesn't make sense.

Attachment 22924

So the first bound is a parabola on the yz plane, the second is just a line on the xy plane.
• Nov 28th 2011, 12:42 PM
TheEmptySet
Re: Triple integral help.
Quote:

Originally Posted by Kuma
Can someone please explain what this means? I tried drawing out the region but it still doesn't make sense.

Attachment 22924

So the first bound is a parabola on the yz plane, the second is just a line on the xy plane.

The object is 3D. Have graphed the top part and its projection into the xy plane. You are asked to project this into the yz and xz planes as well. I hope this picture gets you started. P.S here is the maple code for the graph if you have it.

Code:

```with(plots): a := plot3d(4-y^2, y = 0 .. 2*x, x = 0 .. 1, axes = normal); b := plot3d(0, y = 0 .. 2*x, x = 0 .. 1, axes = normal, transparency = .9); display(a,b);```