Which is the directrix of a parabola with equation X^2=8y

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06-06-2017
Mathematics

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Which is the directrix of a parabola with equation X^2=8y

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kevinmeeks007 kevinmeeks007 · Answer 1 · 2017-06-14T15:58:14+02:00

Alright so, After rewriting the equation in a standard parabola, you get:
4 x 2 (y-0) =(x - 0)^2

Simplify it to get:
y= 0-p
y= 0-2

When you simplify that, your answer is:
y=-2

There you go folks, just saved you from reading that long paragraph of an answer the other guy has (I don't even think the answer is in there lol, I think he just wanted to help people solve it but still most people come here for answers)