If PQ is the focal chord of the parabola y^2=-x and P is -4,2, then the ordinate of the point of intersection of the tangents at P and Q is

Question

MARKS Content Team · Accepted Answer

Correct answer: (A) 15/16. The tangent at the end points of the focal chord meets at the directrix. The equation of the tangent at P is y⋅2=−(x−4)/2 ⇒4y=-x+4 This tangent intersects the directrix at 1/4,15/16

If $P Q$ is the focal chord of the parabola $y^{2} = - x$ and $P$ is $(- 4, 2)$ , then the ordinate of the point of intersection of the tangents at $P$ and $Q$ is

Solution

More Parabola Questions

If PQ is the focal chord of the parabola y2=-x and P is -4,2, then the ordinate of the point of intersection of the tangents at P and Q is

Solution

More Parabola Questions

If $P Q$ is the focal chord of the parabola $y^{2} = - x$ and $P$ is $(- 4, 2)$ , then the ordinate of the point of intersection of the tangents at $P$ and $Q$ is