what's the equation of a parabola

User Generated

Wbpl

Mathematics

Description

using the distance formula what's the equation of a parabola with its focus at (0,7) and directrix at y=-7

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Explanation & Answer

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This is an equation of a parabola that opens left with vertex at origin.
Its basic form of equation: y^2=-4px
For given parabola:
vertex:(0,0)
axis of symmetry: y=0 
p=7 (distance from vertex to directrix and focus on the axis of symmetry)
4p=28


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Anonymous
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