Question 744406
write an equation for the conic section
parabola with vertex at(0,0) and directrix x = 5
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Form: (x-h)^2 = 4p(y-k)
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The distance from the vertex to the directrix is p = -5
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Substitute for h,k and p to get:
(x-0)^2 = -20(y-0)
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x^2 = -20y
y = (-1/20)x^2
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Cheers,
Stan H.
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