SOLUTION: How do i identify the vertex, focus, and directrix of y=1/12x^2

SOLUTION: How do i identify the vertex, focus, and directrix of y=1/12x^2

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Question 316878: How do i identify the vertex, focus, and directrix of y=1/12x^2
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The equation is already in vertex form,

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The vertex is (0,0).
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The general equation for a parabola is,
where p is the distance from the vertex to the focus.
In your case,

The focus is located at (0,0)+(0,3)=(0,3)
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The directrix is the same distance from the vertex but in the opposite direction.

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