Find the Vertex of the Graph of the Quadratic Function $f ( x ) = - 2 x ^ { 2 } + 24 x - 70$

Find the vertex of the graph of the quadratic function. Find any intercepts and graph the function.
- $f ( x ) = - 2 x ^ { 2 } + 24 x - 70$

A) Vertex: $( - 6,2 )$ ;
$x$ -intercepts: $( - 5,0 )$ and $( - 7,0 )$ ;
y-intercept: $( 0 , - 70 )$

B) Vertex: $( - 2 , - 6 )$ ;
$x$ -intercepts: none;
y-intercept: $( 0 , - 70 )$

C) Vertex: $( 6,6 )$ ;
$x$ -intercepts: $( 6 \pm \sqrt { 3 } , 0 )$ ;
y-intercept: $( 0 , - 70 )$

D) Vertex: $( 6,2 )$ ;
$x$ -intercepts: $( 5,0 )$ and $( 7,0 )$ ;
$y$ -intercept: $( 0 , - 70 )$