Find the Center and Radius of the Circle $$x ^ { 2 } + y ^ { 2 } = 7$$

Multiple Choice

Find the center and radius of the circle.
- $$x ^ { 2 } + y ^ { 2 } = 7$$

A) $( 0,0 ) , r = 7$
B) $( 1,1 ) , r = \sqrt { 7 }$
C) $( 1,1 ) , r = 7$
D) $( 0,0 ) , r = \sqrt { 7 }$