The line `x-1=0` is the directrix of a parabola, `y^2=kx` then
Find the value of k.

The line x-1=0 is the directrix of a parabola, y^2=kx then Find the vertex, focus,axis of parabola and length of latus rectum of the parabola.

Find the equation of the directrix of the parabola y^2=-12x

If x=2 is the equation of the directrix of the parabola y^(2) =-4ax , then the focus of the parabola is a) (0,1) b) (2,0) c) (-2,0) d) (0,-1)

If the vertex of the parabola y=x^(2)-16x+k lies on x-axis, then the value of k is :

The equation of the directrix of the parabola y ^(2)+ 4y + 4x +2 = 0 is

Directrix of the parabola x^2=-4ay is.....