Find the Vertex of the Graph of the Quadratic Function $f ( x ) = - 3 x ^ { 2 } + 30 x - 79$

Multiple Choice

Find the vertex of the graph of the quadratic function. Find any intercepts and graph the function.
- $f ( x ) = - 3 x ^ { 2 } + 30 x - 79$

A) Vertex: $( 5 , - 4 )$ ;
$x$ -intercepts: none;
y-intercept: $( 0 , - 79 )$

B) Vertex $( - 5 , - 4 )$ ;
$x$ -intercepts: none;
$y$ -intercept $( 0 , - 79 )$

C) Vertex $( - 5 , - 4 )$ ;
x-intercepts: none;
y-intercept $\left( 0, - \frac { 37 } { 3 } \right)$ ;

D) Vertex $( 5 , - 4 )$ ;
$\mathrm { x }$ -intercepts: none;
$\mathrm { y }$ -intercept: $\left( 0 , - \frac { 37 } { 3 } \right)$