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Question 929017: find the equation of the parabola with focus (8,5) and directrix x=0
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! find the equation of the parabola with focus (8,5) and directrix x=0
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This is an equation of a parabola that opens rightward.
Its basic form of equation: (y-k)^2=4p(x-h), (h,k)=coordinates of the vertex
x-coordinate of vertex=4(midpoint between focus and directrix)
y-coordinate=5
vertex:(4,5)
axis of symmetry: y=5
p=4(distance from vertex to focus and directrix on the axis of symmetry)
4p=16
Equation: (y-5)^2=16(x-4)
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