Find the Vertex and Focus of the Parabola $y ^ { 2 } = - \frac { 3 } { 4 } x$

Multiple Choice

Find the vertex and focus of the parabola. $y ^ { 2 } = - \frac { 3 } { 4 } x$

A) vertex: $\left( 0 , - \frac { 3 } { 4 } \right)$ focus: $\left( - \frac { 3 } { 4 } , - \frac { 3 } { 4 } \right)$
B) vertex: (0, 0) focus: $\left( 0 , - \frac { 3 } { 4 } \right)$
C) vertex: (0, 0) focus: $\left( - \frac { 3 } { 4 } , 0 \right)$
D) vertex: (0, 0) focus: $\left( - \frac { 3 } { 16 } , 0 \right)$
E) vertex: $\left( 0 , - \frac { 3 } { 4 } \right)$ focus: $\left( 0 , - \frac { 3 } { 16 } \right)$