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Two diameters of a circle are 2x + y = 6 and 3x + 2y = 4. What is its centre?
A(8, −10)
B(−8, 10)
C(2, 2)
D(6, −6)
Answer & Solution
Correct answer: A. (8, −10)
Diameters meet at the centre; solving 2x + y = 6 and 3x + 2y = 4 gives x = 8 and y = −10.
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