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The center of the circle is at (−1, 1). What is the equation of the circle?

The center of the circle is at (−1, 1).
What is the equation of the circle?
A. (x – 1)² + (y + 1)² = 8
B. (x + 1)² + (y – 1)² = 8
C. (x – 1)² + (y + 1)² = 16
D. (x + 1)² + (y – 1)² = 16




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