alleryStart learning →What are the slopes of the lines x² - 2xy - 3y² = 0?
A3 and -1
B1/3 and 1
C-1/3 and 1
D1/3 and -1
Answer & Solution
Correct answer: D. 1/3 and -1
The factorisation (x - 3y)(x + y) gives y = x/3 and y = -x.
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