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The points (3, −2), (1, 0), (−1, −2), (1, −4) lie on a circle with which centre?
A(1, −2)
B(0, 0)
C(1, 2)
D(−1, 2)
Answer & Solution
Correct answer: A. (1, −2)
Each point is at distance 2 from (1, −2), so that is the centre and the radius is 2.
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