Find the Axis of Symmetry of the Parabola Defined by the Given

Multiple Choice

Find the axis of symmetry of the parabola defined by the given quadratic function.
- $$f ( x ) = 4 x ^ { 2 } - 8 x - 9$$

A) $x = - 1$
B) $x = - 13$
C) $x = 2$
D) $x = 1$