30.6 The Hyperbola: The Path of a Constant Difference
Point 5 of 5
30.6.5 Eccentricity and Opening
Core idea
With e=c/a greater than 1, the larger it grows the wider the branches flare, setting how far open the hyperbola spreads.
Module goal. Introduce the hyperbola from the constant difference of distances to two fixed points, and master its standard equation, asymptotes, and eccentricity.
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