Find a Polar Equation for the Ellipse with Its Focus $e = \frac { 5 } { 6 } , \text { and }$

question 18

Multiple Choice

Find a polar equation for the ellipse with its focus at the pole, eccentricity $e = \frac { 5 } { 6 } , \text { and }$ directrix $y = - 10$ .

• A) \(r = \frac { - 50 } { 6 + 5 \sin \theta }\)
• B) \(r = \frac { - 50 } { 6 - 5 \cos \theta }\)
• C) \(r = \frac { 50 } { 6 - 5 \sin \theta }\)
• D) \(r = \frac { - 50 } { 6 + 5 \cos \theta }\)
• E) \(r = \frac { 50 } { 6 - 5 \cos \theta }\)

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