The equation of the directirix of the parabola `x ^(2) -4x -8y +12=0` is-

The equation of the directrix of the parabola x^(2) - 4x - 8y + 12 = 0 is (i) y = 0 (ii) x - 1 = 0 (iii) y+ 1 = 0 (iv) x + 1 = 0

The equation of the directrix of the parabola x^(2) = 8y is

The equation of the directrix of the parabola x^(2) = 8y is

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

The equation of the directrix of the parabola x ^(2) + 8y -2x =7 is

The directrix of the parabola x^(2)-4x-8y+12=0

The directrix of the parabola x^2-4x-8y + 12=0 is

The directrix of the parabola x^2-4x-8y + 12=0 is