The feet of the perpendicular drawn from focus upon any tangent to the parabola, `y=x^2-2x-3` lies on

The locus of foot of the perpendiculars drawn from the focus on a variable tangent to the parabola y^2 = 4ax is

The locus of foot of the perpendiculars drawn from the focus on a variable tangent to the parabola y^2 = 4ax is

The locus of foot of perpendicular from the focus upon any tangent to the parabola y^(2) = 4ax is

Locus of the feet of the perpendiculars drawn from either foci on a variable tangent to the hyperbola 16y^2 -9 x^2 = 1 is

Locus of the feet of the perpendiculars drawn from either foci on a variable tangent to the hyperbola 16y^(2)-9x^(2)=1 is

Locus of the feet of the perpendiculars drawn from either foci on a variable tangent to the hyperbola 16y^2 -9 x^2 = 1 is