From the Graph of the Quadratic Function $f ( x ) = - x ^ { 2 } + 12 x + 4$

Multiple Choice

From the graph of the quadratic function $f ( x ) = - x ^ { 2 } + 12 x + 4$ ,determine the equation of the axis of symmetry.

A) $x = 6$
B) $x = 4$
C) $x = 40$
D) $x = - 12$
E) $x = - 32$