SOLUTION: Find the equation of the parabola with its vertex at the origin if its directrix is y=3

SOLUTION: Find the equation of the parabola with its vertex at the origin if its directrix is y=3

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Question 449573: Find the equation of the parabola with its vertex at the origin if its directrix is y=3
Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!
As you know the directrix of the parabola is y=-c, since y=3, we get
3=-c or c=-3, and the equation of parabola will be: .
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