Answer:
C
Step-by-step explanation:
The domain are the values of x on a graph so you can see on both sides the x value goes on forever and only C fills that requirement
10
5Stetpplanation:
True
Formula: (x^2 -h) +(y^2 -k)=r^2
The number on the right side of the = is the radius of the circle squared.
(h,k) is the center of the circle.