SOLUTION: Find the vertex, focus, length of latus rectum and the equation of directrix from the following equation of parabola x^2 = -9y

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Question 1119535: Find the vertex, focus, length of latus rectum and the equation of directrix from the following equation of parabola x^2 = -9y
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2=-9y

%28x-0%29%5E2=-9%28y-0%29
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-9=4%2Ap
p=-9%2F4
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VERTEX, (0,0)
FOCUS, (0, -9/4)
DIRECTRIX, y=9%2F4