Question 630835: Which is an equation for the parabola with focus at (-11,-4) and vertex at (1,-4)
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! Which is an equation for the parabola with focus at (-11,-4) and vertex at (1,-4)
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This is an equation of a parabola that opens leftwards
Its standard form: (y-k)^2=-4p(x-h), (h,k)=(x,y) coordinates of vertex.
axis of symmetry: y=-4
p=12 (distance from vertex to focus on he axis of symmetry. ( from 1 to -11)
4p=48
equation:
(y+4)^2=-48(x-1)
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