Find the Vertex, Focus, Directrix, and Focal Width of the Parabola

Multiple Choice

Find the vertex, focus, directrix, and focal width of the parabola.
- $$- \frac { 1 } { 40 } x ^ { 2 } = y$$

A) Vertex: $( 0,0 )$ ; Focus: $( 0 , - 10 )$ ; Directrix: $y = 10$ ; Focal width: 40
B) Vertex: $( 0,0 )$ ; Focus: $( 0,10 )$ ; Directrix: y $= - 10$ ; Focal width: 10
C) Vertex: $( 0,0 )$ ; Focus: $( - 20,0 )$ ; Directrix: $x = 10$ ; Focal width: 160
D) Vertex: $( 0,0 )$ ; Focus: $( 0 , - 10 )$ ; Directrix: $y = 10$ ; Focal width: 160