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An ellipse with the eccentricity e = 1/2...

An ellipse with the eccentricity e = 1/2 has a focus at (0, 0) and the corresponding directix is x+6=0. The equation of the ellipse is

A

`3x^(2)+4y^(2)+12x-36=0`

B

`3x^(2)+4y^(2)-12x+36=0`

C

`3x^(2)+4y^(2)-12x-36=0`

D

none

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Knowledge Check

  • Focus (4, 0), e = 1/2 , directrix is x -16 = 0. Then equation of the ellipse is

    A
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