From the Graph of the Quadratic Function $f ( x ) = ( x + 6 ) ^ { 2 } - 1$

Multiple Choice

From the graph of the quadratic function $f ( x ) = ( x + 6 ) ^ { 2 } - 1$ , determine the equation of the axis of symmetry.

A) $x = - 6$
B) $x = - 1$
C) $x = - \frac { 1 } { 6 }$
D) $x = 1$
E) $x = 6$