Find the Coordinates of the Vertex for the Parabola Defined $$f ( x ) = 8 - x ^ { 2 } + 2 x$$

Multiple Choice

Find the coordinates of the vertex for the parabola defined by the given quadratic function.
- $$f ( x ) = 8 - x ^ { 2 } + 2 x$$

A) $( 1,9 )$
B) $( - 1,9 )$
C) $( 1 , - 9 )$
D) $( - 1 , - 9 )$