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OpenStudy (anonymous):
What is the directrix of the parabola 3y^2 - 12x = 0
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OpenStudy (anonymous):
y^2 = 4x
OpenStudy (anonymous):
is the parabola..dont get excited:)
OpenStudy (anonymous):
see if a parabola is given b y^2 = 4ax its directrix is x+ a =0
OpenStudy (anonymous):
now in ur case a = 1 so x+1 = 0
OpenStudy (anonymous):
im so confused
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