The equation of the parabola with focus (0,0) and directrix `x+y=4` is a.`x^2+y^2-2x y+8x+8y-16=0` b.`x^2+y^2+8x+8y-16=0` 2-2x y+8x+8y=0` d.`x^2-y^2+8x+8y-16=0`

The focus of the parabola x^2-8x+2y+7=0 is

The focus of the parabola y^(2)-4y-8x+4=0 is,

The focus of the parabola y^(2) -8x-2y+2 = 0 is

The equation of the parabola whose focus is (4,-3) and vertex is (4,-1) is. (A) x^(2)+ 8x+8y – 24 = 0 (B) y^(2) + 8x -8y + 24 = 0 (C) x^(2) – 8x+8y + 24 = 0 (D) y^(2) +8x+8y-24 = 0

The focus of the parabola x^(2)-8x+2y+7=0 is

Equation of common tangent of parabola y ^(2) = 8x and x ^(2) + y =0 is

For the parabola y^(2)+8x-12y+20=0

The equation of the common normal at the point of contact of the curves x^(2)=y and x^(2)+y^(2)-8y=0