Two circles are concentric if they have the same center. Which equation represents a circle that is concentric
with the circle shown but has a radius that is twice as
large?
109
9
8
7
6
o(x-4)2 + (1 - 6)2 = 4
(x-4)2 + (y - 6)2 = 16
0 (X-6)2 + (-4)2 = 16
0 (X-6)2 + y - 4)2 = 4
5
4
2
8 9 10