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What is the equation of a parabola with vertex (0, 0) and directrix y = 12

What is the equation of a parabola with vertex (0, 0) and directrix y = 12
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What is the equation of a parabola with vertex (0, 0) and directrix y = 12

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User Ruthreshwar
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1 Answer

1 vote
y=12x² because y=a(x-h)²+k. a= the space between your vertex and directrix or focus in this case is 12. (h,k) is you vertex 
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User Markicevic
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