Determine the Two Equations Necessary to Graph the Horizontal Parabola $x + 3 = ( y + 6 ) ^ { 2 }$

Multiple Choice

Determine the two equations necessary to graph the horizontal parabola using a graphing calculator.
- $x + 3 = ( y + 6 ) ^ { 2 }$

A) $y = \sqrt { x - 3 }$ and $y = - \sqrt { x - 3 }$
B) $y = \sqrt { x + 3 } - 6$ and $y = - \sqrt { x + 3 } - 6$
C) $y = \sqrt { x + 9 }$ and $y = - \sqrt { x + 9 }$
D) $y = \sqrt { x + 3 } - 6$ and $y = - \sqrt { x + 3 } + 6$