Find the center (h, k) and the radius r of the circle.2x2 + 2y2 - 8x + 16y + 22 = 0
A. (h, k) = (-2, 4); r = 9
B. (h, k) = (2, -4); r = 3
C. (h, k) = (-2, 4); r = 3
D. (h, k) = (2, -4); r = 9
Answer: B
Mathematics
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