Determine the Two Equations Necessary to Graph the Ellipse with a Graphing

Determine the two equations necessary to graph the ellipse with a graphing calculator.
- $$\frac { ( x - 3 ) ^ { 2 } } { 81 } + \frac { y ^ { 2 } } { 64 } = 1$$

A) $y = \frac { 8 \sqrt { 9 - x ^ { 2 } } } { 9 }$ and $y = - \frac { 8 \sqrt { 9 - x ^ { 2 } } } { 9 }$
B) $y = \frac { 8 \sqrt { - x ^ { 2 } + 6 x + 72 } } { 9 }$ and $y = - \frac { 8 \sqrt { - x ^ { 2 } + 6 x + 72 } } { 9 }$
C) $y = \frac { 8 \sqrt { 81 - x ^ { 2 } } } { 9 }$ and $y = - \frac { 8 \sqrt { 81 - x ^ { 2 } } } { 9 }$
D) $y = \frac { 8 \sqrt { 729 - x ^ { 2 } } } { 9 }$ and $y = - \frac { 8 \sqrt { 729 - x ^ { 2 } } } { 9 }$

Correct Answer:

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