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An equation of the parabola whose focus is (–3, 0)
and the directrix $x + 5 = 0$ is:

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y2=4(x+5)

y2=4(x+4)

y2=4(x+3)

y2=4(x−3)

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detailed solution

Correct option is B

We have (x+3)2+y2=|x+5|⇒y2=(x+5)2−(x+3)2=4(x+4).

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An equation of the parabola whose focus is (–3, 0)and the directrix x + 5 = 0 is:

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

An equation of the parabola whose focus is (–3, 0)
and the directrix $x + 5 = 0$ is: