alleryStart learning →Where do the lines in x² - 6xy + 5y² + 10x - 14y + 9 = 0 intersect?
A(1, 2)
B(2, 1)
C(-1, 2)
D(1, -2)
Answer & Solution
Correct answer: A. (1, 2)
It factors as (x - 5y + 9)(x - y + 1) = 0, and (1, 2) satisfies both lines.
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