SOLUTION: Write an equation for the following conic. If it is a parabola, it has a vertex at the origin, and if it is an ellipse or a hyperbola, it is centered at the origin.
foc
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Question 1174803: Write an equation for the following conic. If it is a parabola, it has a vertex at the origin, and if it is an ellipse or a hyperbola, it is centered at the origin.
focus at (0,9) and e=1
Answer by greenestamps(13215) (Show Source): You can put this solution on YOUR website!
eccentricity e=1 means we have a parabola.
Vertex at the origin and focus at (0,9) means the parabola opens upward. The general equation is
In that form, p is the directed distance from the vertex to the focus.
In this example, that distance is 9. So the equation is
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