If focus and vertex of a parabola are respectively (1,-1) and (2, 1), then its directrix is

If the focus and the vertex of a parabola are (2,3) and (-1,1) respectively, then the directrix is :

If the focus and the vertex of a parabola are (2,3) and (-1,1) respectively, then the directrix is :

If the vertex and focus of a parabola are (2,1) and (1,-1) then its equation is

If the vertex and focus of a parabola are (2,1) and (1,-1) then its equation is

The focus and directrix of a parabola are (1,-1) and x+y+3=0. Its vertex is

vertex and focus of a parabola are (-1,1) and (2,3) respectively.find the equation of the directrix.

vertex and focus of a parabola are (-1,1) and (2,3) respectively. find the equation of the directrix.

vertex and focus of a parabola are (-1,1) and (2,3) respectively. find the equation of the directrix.

The focus and directrix of a parabola are (1, 2) and x + 2y + 9 = 0 then equation or Tangent at vertex is

The focus and directrix of a parabola are (1,2) and 2x-3y+1=0 .Then the equation of the tangent at the vertex is