Use the Quadratic Function to Determine If the Function Has $$f ( x ) = \frac { 1 } { 2 } x ^ { 2 } + 4 x - 4$$

Multiple Choice

Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.
- $$f ( x ) = \frac { 1 } { 2 } x ^ { 2 } + 4 x - 4$$

A) minimum at $( - 4 , - 12 )$
B) maximum at $( 4,6 )$
C) minimum at $( 4,12 )$
D) maximum at $( - 4 , - 4 )$