If two tangents drawn from a point P to the parabola y^2=4x are at right angles, then the …

Question

If two tangents drawn from a point $P$ to the parabola $y^2=4x$ are at right angles, then the locus of $P$ is:

Accepted Answer

The locus of points from which perpendicular tangents are drawn to a parabola is its directrix. For $y^2=4x$ ($a=1$), the directrix is $x=-1$.

Solutions · 1