Find the Vertex and Axis of Symmetry of the Graph $$f ( x ) = - x ^ { 2 } + 6 x$$

Multiple Choice

Find the vertex and axis of symmetry of the graph of the function.
- $$f ( x ) = - x ^ { 2 } + 6 x$$

A) (3, 9) ; x = 3
B) (-3, -9) ; x = -3
C) (9, -3) ; x = 9
D) (-9, 3) ; x = -9