document.write( "Question 876020: Write the equation of the parabola with a focus (-2,4) and directrix y = 0.
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Algebra.Com's Answer #528518 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Need to Know...............................................................
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document.write( "Standard Form of an Equation of a Circle is  
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document.write( "Standard Form of an Equation of an Ellipse is  
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document.write( "Standard Form of an Equation of an Hyperbola opening up and down is: 
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document.write( "Standard Form of an Equation of an Hyperbola opening right and  left is: 
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document.write( "the vertex form of a Parabola opening up(a>0) or down(a<0), 
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document.write( " the vertex form of a Parabola opening right(a>0) or left(a<0), \r
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document.write( "focus (-2,4) and directrix y = 0.
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document.write( "Parabola Opening Upward along x = -2: Directrix y = 0 below F(-2,4),
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document.write( "((4-0)/2 = 2 = k
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document.write( " C(-2,2)
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document.write( "a = 1/(4p) = 1/(4*2) = 1/8
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