Find the center (h, k) and radius r of the circle with the given equation. x2 + 8x + 16 + y2 + 4y + 4 = 4
A. (h, k) = (2, 4); r = 4
B. (h, k) = (-2, -4); r = 2
C. (h, k) = (-4, -2); r = 2
D. (h, k) = (4, 2); r = 4
Answer: C
Mathematics
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