JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Easy

1 of 1

Application +4 | -1

The equation of two straight lines through the point

\left(x_1, y_1\right)

and perpendicular to the lines given by

a x^2+2 h x y+b y^2=0,

View answer and explanation

Correct option: A

b\left(x-x_1\right)^2-2 h\left(x-x_1\right)\left(y-y_1\right)+a\left(y-y_1\right)^2=0

Option A (

b(x-x_1)^2-2 h(x-x_1)(y-y_1)+a(y-y_1)^2=0

) is correct because it represents the equation of lines perpendicular to the given lines, shifted to pass through the point (x1, y1).

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