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The equation of parabola whose vertex an...

The equation of parabola whose vertex and focus lie on the axis of x at distances a and `a_1` from the origin respectively, is

A

`y ^(2) =4 (a'-a) (x-a)`

B

`y ^(2) =4 (a'-a_ (x+a)`

C

`y ^(2)=4 (a'+a) (x-a)`

D

`y ^(2) = (a'+a ) (x+a)`

Text Solution

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The correct Answer is:
A
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