Write a Polar Equation of a Conic That Has Its $y = 3$

question 78

Multiple Choice

Write a polar equation of a conic that has its focus at the origin and satisfies the given conditions.Parabola, directrix $y = 3$

• A) \(r = \frac { 3 } { 1 - \sin \theta }\)
• B) \(r = \frac { 1 / 3 } { 1 + \sin \theta }\)
• C) \(r= \frac { 3 } { 1 + \cos \theta }\)
• D) \(r = \frac { 3 } { 1 - \cos \theta }\)
• E) none of these

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