Find the Coordinates of the Vertex for the Parabola Defined $f ( x ) = - x ^ { 2 } - 4 x - 9$

Multiple Choice

Find the coordinates of the vertex for the parabola defined by the given quadratic function.
- $f ( x ) = - x ^ { 2 } - 4 x - 9$

A) $( - 2 , - 5 )$
B) $( 2 , - 21 )$
C) $( - 4 , - 9 )$
D) $( 2 , - 13 )$