Find the Center and Radius of the Circle $$x ^ { 2 } + y ^ { 2 } + 4 x - 16 y - 13 = 0$$

question 279

Multiple Choice

Find the center and radius of the circle.
- $$x ^ { 2 } + y ^ { 2 } + 4 x - 16 y - 13 = 0$$

• A) center: \(( 2 , - 8 )\); radius: 81
• B) center: \(( - 2,8 )\); radius: 9
• C) center: \(( - 8,2 )\); radius: 81
• D) center: \(( 8 , - 2 )\); radius: 9

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