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Travis
Posts:
1
Registered:
8/15/12


Parabola vs Hyperbola
Posted:
Aug 15, 2012 12:17 PM


What is a quick way to determine whether a shape is a parabola or a hyperbola. I realize that hyperbolas consist of two arcs. I guess my question is this: Is a hyperbola two parabolas back to back? Also 1/x is an arc, so is it a parabola or hyperbola. I thought of this question after playing Robot Unicorn Attack which involves what I think is a parabola, but it may very well be one arc of a hyperbola. I am aware of the equations relating to these conic sections, but 1/x does not fit into any of these formulas, plus it is rotated. For reference: a parabola uses this equation: yk=a(xh)^2. Hyperbolas use this equation (xh)^2/a^2  (yk)^2/b^2 = 1. If you can help me out please do. Any help is appreciated. Cheers.



