Find the Vertex and Axis of Symmetry of the Graph $f ( x ) = x ^ { 2 } + 4 x$

Multiple Choice

Find the vertex and axis of symmetry of the graph of the function.
- $f ( x ) = x ^ { 2 } + 4 x$

A) $( - 2 , - 4 ) ; x = - 2$
B) $( 2 , - 4 ) ; x = 2$
C) $( - 4,2 ) ; x = - 4$
D) $( 4 , - 2 ) ; x = 4$