Determine the Vertex of the Graph of the Quadratic Function $f ( x ) = x ^ { 2 } - 8$

Multiple Choice

Determine the vertex of the graph of the quadratic function $f ( x ) = x ^ { 2 } - 8$ .

A) $( 0,8 )$
B) $( - 8,0 )$
C) $( - 8 , - 8 )$
D) $( 0 , - 8 )$
E) $( 8,0 )$