State the Domain and Range

I already figured out whether it is function or not but I’m really stuck on figuring out the domain and range. Please help me, thank you. I would like the answer or an explanation to get through it.

f(x)=3x-5
Domain:
Domain:
infinite
Domain:
Range:
Range:
Range:
infinite
Function or not:
Function or not:
Function or not:
FUNCTION
NOT A FUNCTION
NOT A FUNCTION
..
Domain:
Range:
Domain:
(x-h)^2(y-k)^2=r^2
Function or not:
NOT A FUNCTION
Range:
Function or not:
NOT A FUNCTION