Find the Axis of the Graph of the Function $$f ( x ) = ( x + 2 ) ^ { 2 } - 9$$

Multiple Choice

Find the axis of the graph of the function.
- $$f ( x ) = ( x + 2 ) ^ { 2 } - 9$$

A) $y = 9$
B) $x = 9$
C) $x = - 2$
D) $y = 2$