Mathematics - Straight Lines Question with Solution | TestHub

MathematicsStraight LinesPair of St. linesMedium2 minQB

MathematicsMediummultiple choice

The diagonals of a square lie on $2 x^{2} - 3 x y - 2 y^{2} = 0$ . If $(2, 1)$ is a vertex, which points may be adjacent vertices?

Answer:

C, D

Solution:

The diagonals are $y = x /2$ and $y = - 2 x$ . Reflection/rotation about their intersection gives adjacent vertices (-1, 2) and (1, -2).

Stream:JEESubject:MathematicsTopic:Straight LinesSubtopic:Pair of St. lines

⏱ 2mℹ️ Source: QB

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