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.
- $$y + 9 = ( x + 3 ) ^ { 2 }$$

A) $x = - 3$
B) $x = 3$
C) $\mathrm { y } = 9$
D) $y = - 9$ ) y