Question 808174: Find an equation of a parabola with focus (0,-7) and directrix y = 7
Can you please help me out? Thank you Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Find an equation of a parabola with focus (0,-7) and directrix y = 7
Can you please help me out?
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Given parabola opens down with vertex at the origin
axis of symmetry:x=0 or y-axis
Its basic form of equation: x^2=-4py
p=7 (distance from vertex to focus or directrix on the axis of symmetry
4p=28
equation of given parabola: x^2=-28y
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