If an ellipse has foci (0, +-1) and vertices (0, +-2) What is the eccentricity of the ellipse?

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Answer 1 · 2016-02-07T14:03:49

Eccentricity #e=1/2#

Foci#(0, +-1)# and Vertex #(0,+-2)#

#a=2# and #c=1#

Eccentricity #e=c/a=1/2#

#a^2=c^2+b^2#

#2^2=1^2+b^2#

#b^2=3#

graph{x^2/3+y^4=1[-5,5,-3,3]}

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