Find the Vertex of the Graph of the Quadratic Function $$f ( x ) = - x ^ { 2 } - 14 x - 6$$

Multiple Choice

Find the vertex of the graph of the quadratic function.
- $$f ( x ) = - x ^ { 2 } - 14 x - 6$$

A) $( - 7,43 )$
B) $( 7 , - 153 )$
C) $( 7 , - 55 )$
D) $( - 14 , - 6 )$