Question

An ellipse has foci (0, ±4) and vertices (0, ±5). What is the eccentricity of the ellipse?

Answer 1

Do you know the formula for eccentricity?

Answer 2

no... QvQ can you tell me the formula?
and how to solve it?

Answer 3

Eccentricity=c/a

where is focus and a is length of major axis.

Answer 4

how do i find out the length of the axis from the info i was given?
and is foci the focus?

Answer 5

yepp foci is the focus

Answer 6

Length of major axis is same as distance between the vertices.

Answer 7

so is it 4/5???

Answer 8

Nope.

Answer 9

*Distance between two vertices. Not simply vertex.

Answer 10

4/10?

Answer 11

Yes :)

Answer 12

X3 thank you! can you help me with any other problems i get stuck on?