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At any point P on the parabola y^2 -2y-4...

At any point P on the parabola `y^2 -2y-4x+5=0` a tangent is drawn which meets the directrix at Q. Find the locus of point R which divides QP externally in the ratio `1/2:1`

A

`(x+1)(y-1)^2+4=0`

B

`(x+1)(y-1)^2-4=0`

C

`(y+1)(x-1)^2+2=0`

D

`(y-1)(x+1)^2+3=0`

Text Solution

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The correct Answer is:
A
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