Find the Center and Radius of the Circle $$x ^ { 2 } + y ^ { 2 } - 2 x + 10 y - 55 = 0$$

Multiple Choice

Find the center and radius of the circle.
- $$x ^ { 2 } + y ^ { 2 } - 2 x + 10 y - 55 = 0$$

A) center: $( - 5,1 )$ ; radius: 9
B) center: $( 5 , - 1 )$ ; radius: 81
C) center: $( - 1,5 )$ ; radius: 81
D) center: $( 1 , - 5 )$ ; radius: 9