Pair of straight lines perpendicular to each other represented by [Roorkee 1990]

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Solution

The correct option is A

Since $2 x^{2} = 2 y (2 x + y) \Rightarrow x^{2} - 2 x y - y^{2} = 0$ .

Hence, coefficient of $x^{2}$ + coefficient of $y^{2} = 1 - 1 = 0$

Hence the lines are perpendicular.

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Similar questions

Pair of straight lines perpendicular to each other represented by

3 a x^{2} + 5 x y + (a^{2} - 2) y^{2} = 0

3 a x^{2} + 5 x y + (a^{2} - 2) y^{2} = 0

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Which of the equation represents the pair of perpendicular straight lines

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