Identify the Center and Radius of the Circle $x ^ { 2 } - 12 x + y ^ { 2 } - 6 y - 36 = 0$

question 24

Multiple Choice

Identify the center and radius of the circle $x ^ { 2 } - 12 x + y ^ { 2 } - 6 y - 36 = 0$ .

• A)center: (12,6) radius: 216
• B)center: (-6,-3) radius: 9
• C)center: (6,3) radius: 36
• D)center: (6,3) radius: 9
• E)center: (12,6) radius: 36

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