how do i plot the section of a cone z = 9-sqrt(x^2 + y^2) in the cylinder of r=2

pretty much what the question says ive tried two different ways and none of them have worked. I can post what i have if needed.

[John D'Errico]

If you post what you tried, then we can help you to fix it, find what you did wrong. This is often something simple.

If you post nothing, then it becomes a doit4me, where someone else needs to write the code from scratch. It requires much more work on the part of someone who might decide to help you. It also makes it far less likely that you will get any answer at all, and certainly not in a timely fashion.

So if you seriously want help, then make it easy for someone to help you.

[Carlos Perez]

I actually ended up figuring it out shortly after i posted the question. I was trying to avoid changing to polar but once i did i got it working. Thanks anyways though!

[John D'Errico]

Polar coordinates make a huge amount of sense. Well done.