A mirror is the shape of an ellipse defined by the fraction with numerator y squared and denominator 7 point 2 9 plus the fraction with numerator x squared and denominator 6 point 2 5 is equal to 1 with units in feet. Which statement identifies the orientation of the mirror and its greatest dimension?
Answer
A
The mirror has a vertical orientation and is 5 point 4 ft tall.
B
The mirror has a horizontal orientation and is 7 point 2 9 ft wide.
C
The mirror has a vertical orientation and is 7 point 2 9 ft tall.
D
The mirror has a horizontal orientation and is 5 point 4 ft wide.