Find the Center (H, K) and Radius R of the Circle

Multiple Choice

Find the center (h, k) and radius r of the circle with the given equation.
- $$( x - 2 ) ^ { 2 } + y ^ { 2 } = 9$$

A) $( h , k ) = ( 2,0 ) ; r = 3$
B) $( h , k ) = ( 0,2 ) ; r = 9$
C) $( h , k ) = ( 2,0 ) ; r = 9$
D) $( \mathrm { h } , \mathrm { k } ) = ( 0,2 ) ; \mathrm { r } = 3$