Hi, I have one problem that I am completely stuck on. It is

x^2 + y^2 - 6x + 8 = 0

The problem I have is setting up the actual equation. Do I make everything in terms of y, then find where y = 0 for the points?

I tried doing this and it gave me a really funky looking graph. If anybody could point me in the right direction, that would be great!(Hi)

Thanks!