Find the Center and Radius of the Circle $$x ^ { 2 } + y ^ { 2 } + 18 x - 4 y + 76 = 0$$

question 321

Multiple Choice

Find the center and radius of the circle.
- $$x ^ { 2 } + y ^ { 2 } + 18 x - 4 y + 76 = 0$$

• A) center: (-2, 9); radius: 9
• B) center: (9, -2); radius: 9
• C) center: (2, -9); radius: 3
• D) center: (-9, 2); radius: 3

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