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Let P(1) : y^(2) = 4ax and P(2) : y^(2) ...

Let `P_(1) : y^(2) = 4ax` and `P_(2) : y^(2) =-4ax` be two parabolas and L : y = x be a straight line.
Equation of the tangent at the point on the parabola `P_(1)` where the line L meets the parabola is

A

`x - 2y + 4a = 0`

B

`x + 2y - 4a = 0`

C

`x + 2y - 8a = 0`

D

`x - 2y + 8a = 0`

Text Solution

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The correct Answer is:
A
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