Find the Center and Radius of the Circle $$4 x ^ { 2 } + 4 y ^ { 2 } - 40 x - 8 y + 40 = 0$$

question 141

Multiple Choice

Find the center and radius of the circle.
- $$4 x ^ { 2 } + 4 y ^ { 2 } - 40 x - 8 y + 40 = 0$$

• A) center: (-5, -1), radius: 16
• B) center: (5, 1), radius: 4
• C) center: (-1, -5), radius: 16
• D) center: (1, 5), radius: 4

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