SOLUTION: With vertex (2, -3) and directrix y=-7... What is the equation of the parabola?

Question 897694: With vertex (2, -3) and directrix y=-7... What is the equation of the parabola?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
With vertex (2, -3) and directrix y=-7... What is the equation of the parabola?
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basic form of equation for a parabola that opens up as in this case:
(x-h)^2=4p(y-k), (h,k)=coordinates of vertex
For given parabola:
vertex:(2,-3
axis of symmetry: x=2
p=4(distance from directrix to vertex on the axis of symmetry)
4p=16
equation: (x-2)^2=16(y+3)
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