Find an Equation of the Ellipse with Vertices $( \pm 9,0 )$

question 27

Multiple Choice

Find an equation of the ellipse with vertices $( \pm 9,0 )$ and eccentricity $e = \frac { 3 } { 9 }$ . ​

• A) \(\frac { x ^ { 2 } } { 72 } - \frac { y ^ { 2 } } { 81 } = 1\)
• B) \(\frac { x ^ { 2 } } { 81 } + \frac { y ^ { 2 } } { 72 } = 1\)
• C) \(\frac { x ^ { 2 } } { 81 } - \frac { y ^ { 2 } } { 72 } = 1\)
• D) \(\frac { x ^ { 2 } } { 72 } + \frac { y ^ { 2 } } { 81 } = 1\)
• E) \(\frac { x ^ { 2 } } { 72 } + \frac { y ^ { 2 } } { 81 } = 1\)

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