Hi

Need to Know...............................................................

Standard Form of an Equation of a Circle is  

Standard Form of an Equation of an Ellipse is  

Standard Form of an Equation of an Hyperbola opening up and down is: 

Standard Form of an Equation of an Hyperbola opening right and  left is: 

the vertex form of a Parabola opening up(a>0) or down(a<0), 

 the vertex form of a Parabola opening right(a>0) or left(a<0), 



focus (-2,4) and directrix y = 0.

Parabola Opening Upward along x = -2: Directrix y = 0 below F(-2,4),



((4-0)/2 = 2 = k

 C(-2,2)

a = 1/(4p) = 1/(4*2) = 1/8





 

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