SOLUTION: Write the equation of a parabola with a vertex at (0, 0) and a directrix y = -1.

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Question 855612: Write the equation of a parabola with a vertex at (0, 0) and a directrix y = -1.
Answer by lwsshak3(11628) About Me  (Show Source):
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Write the equation of a parabola with a vertex at (0, 0) and a directrix y = -1.
parabola opens up
basic form of equation: x^2=4py
axis of symmetry: x=0 or y-axis
p=1 (distance from vertex to directrix on the axis of symmetry)-----
4p=4
equation of given parabola: x^2=4y