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Mathematics 7 Online
OpenStudy (anonymous):

The equation for the directrix of this parabola is x = -12. x^2=12y A. True B. False

OpenStudy (anonymous):

false. this should be a horizontal directrix... x = -12 is a vertical one. the directrix should be at y = -3

OpenStudy (experimentx):

false |dw:1333446821017:dw|

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