Find the Vertex of the Graph of the Quadratic Function $$f ( x ) = - x ^ { 2 } + x - 8$$

Multiple Choice

Find the vertex of the graph of the quadratic function.
- $$f ( x ) = - x ^ { 2 } + x - 8$$

A) $\left( - \frac { 1 } { 2 } , - \frac { 35 } { 4 } \right)$
B) $( - 1 , - 10 )$
C) $( 1 , - 8 )$
D) $\left( \frac { 1 } { 2 } , - \frac { 31 } { 4 } \right)$