Find the Center (H, K)and Radius R of the Circle $$x ^ { 2 } + y ^ { 2 } + 2 x + 12 y + 28 = 0$$

Find the center (h, k) and radius r of the circle. Graph the circle.
- $$x ^ { 2 } + y ^ { 2 } + 2 x + 12 y + 28 = 0$$

A) Center $( - 1,6 ) , r = 3$

B) Center $( 1,6 ) , \mathrm { r } = 3$

C) Center $( 1 , - 6 ) , \mathrm { r } = 3$

D) Center $( - 1 , - 6 ) , r = 3$