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Write an Equation for the Ellipse (±210,0);x( \pm 2 \sqrt { 10 } , 0 ) ; x

Question 506

Multiple Choice

Write an equation for the ellipse.
-foci at (±210,0) ;x( \pm 2 \sqrt { 10 } , 0 ) ; x -intercepts (±7,0) ( \pm 7,0 )


A) x27+y23=1\frac { x ^ { 2 } } { 7 } + \frac { y ^ { 2 } } { 3 } = 1
B) x29+y249=1\frac { x ^ { 2 } } { 9 } + \frac { y ^ { 2 } } { 49 } = 1
C) x23+y27=1\frac { x ^ { 2 } } { 3 } + \frac { y ^ { 2 } } { 7 } = 1
D) x249+y29=1\frac { x ^ { 2 } } { 49 } + \frac { y ^ { 2 } } { 9 } = 1

Correct Answer:

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