If the focus of a parabola whose vertex is at the origin and which opens down is (0, -4), what is the equation of the parabola? O = - 16y -y O y? = - 16x - 4x – 4y

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter7: Conic Sections And Quadratic Systems
Section7.1: The Circle And The Parabola
Problem 87E
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If the focus of a parabola whose vertex is at the origin and which opens down is (0, –4), what is the equation of the parabola?

If the focus of a parabola whose vertex is at the origin and which opens down is (0, -4), what is the equation of the parabola?
O = - 16y
O x? =
O y = - 16x
- 4x
– 4y
-y
Transcribed Image Text:If the focus of a parabola whose vertex is at the origin and which opens down is (0, -4), what is the equation of the parabola? O = - 16y O x? = O y = - 16x - 4x – 4y -y
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