Find the vertex and focus of the parabola.

 
?

A. vertex: (0,0)     focus: (0,-2)
B. vertex: (2,0)    focus: (0,0)
C. vertex: (0,0)     focus: (-2,0)
D. vertex: (0,0)     focus: (0,2)
E. vertex: (-2,0)   focus: (0,0)


Answer: A

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B.
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