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How do you find the eccentricity of a parabola?
Say you had a parabola of the form y^2+8y-32x+40=0. How would you calculate its eccentricity?
1 Answer
- RogueLv 77 years ago
A circle has an eccentricity of zero, so the eccentricity shows you how "un-circular" the curve is. Bigger eccentricities are less curved.
All Parabolas have an eccentricity of 1.
* eccentricity = 0 we get a circle
* 0 < eccentricity < 1 we get an ellipse,
* eccentricity = 1 we get a parabola,
* eccentricity > 1 we get a hyperbola,
* eccentricity = ∞ we get a line,
Source(s): http://www.mathsisfun.com/geometry/conic-sections.... http://www.mathsisfun.com/geometry/eccentricity.ht...
