Find the center (h, k) and radius r of the circle with the given equation. x2 - 2x + 1 + y2 + 2y + 1 = 49
A. (h, k) = (1, -1); r = 49
B. (h, k) = (1, -1); r = 7
C. (h, k) = (-1, 1); r = 7
D. (h, k) = (-1, 1); r = 49
Answer: B
Mathematics
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