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Write an Equation for the Ellipse (±42,0);x( \pm 4 \sqrt { 2 } , 0 ) ; x

Question 160

Multiple Choice

Write an equation for the ellipse.
-foci at (±42,0) ;x( \pm 4 \sqrt { 2 } , 0 ) ; x -intercepts (±9,0) ( \pm 9,0 )


A) x281+y249=1\frac { x ^ { 2 } } { 81 } + \frac { y ^ { 2 } } { 49 } = 1
B) x29+y27=1\frac { x ^ { 2 } } { 9 } + \frac { y ^ { 2 } } { 7 } = 1
C) x27+y29=1\frac { x ^ { 2 } } { 7 } + \frac { y ^ { 2 } } { 9 } = 1
D) x249+y281=1\frac { x ^ { 2 } } { 49 } + \frac { y ^ { 2 } } { 81 } = 1

Correct Answer:

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