Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 + 2x - 12y + 37 = 36
A. (h, k) = (-6, 1); r = 36
B. (h, k) = (1, -6); r = 36
C. (h, k) = (6, -1); r = 6
D. (h, k) = (-1, 6); r = 6
Answer: D
Mathematics
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