If x-k-0 is equation of directrix to parabola y2-8x-1 then k-A- 1B- 2C- 3D- 4

The correct option is C 3Directrix of Y^2 = 4AX is X+A = 0. A = 2 and X = x+1 = gt; Directrix is x+1+ 2 = 0 = gt; k = 3 ...

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Directrix

If x+k=0 is e...

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If x+k=0 is equation of directrix to parabola $y^{2} = 8 (x + 1)$ then k =

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y^{2} = 8 (x + 1)

x^{2} + y^{2} = 5

(1, - 2)

x^{2} + y^{2} - 8 x + 6 y + 20 = 0

(h, k),

h + k

(- 3, 0)

x + 5 = 0,

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