Find the Vertex of the Graph of the Function $$f ( x ) = - 2 x ^ { 2 } + 12 x - 23$$

Multiple Choice

Find the vertex of the graph of the function.
- $$f ( x ) = - 2 x ^ { 2 } + 12 x - 23$$

A) $( - 2 , - 5 )$
B) $( 3 , - 5 )$
C) $( 6 , - 2 )$
D) $( - 2,6 )$