Write an Equation for the Ellipse $( \pm 4 \sqrt { 2 } , 0 ) ; x$

question 160

Multiple Choice

Write an equation for the ellipse.
-foci at $( \pm 4 \sqrt { 2 } , 0 ) ; x$ -intercepts $( \pm 9,0 )$

• A) \(\frac { x ^ { 2 } } { 81 } + \frac { y ^ { 2 } } { 49 } = 1\)
• B) \(\frac { x ^ { 2 } } { 9 } + \frac { y ^ { 2 } } { 7 } = 1\)
• C) \(\frac { x ^ { 2 } } { 7 } + \frac { y ^ { 2 } } { 9 } = 1\)
• D) \(\frac { x ^ { 2 } } { 49 } + \frac { y ^ { 2 } } { 81 } = 1\)

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