ellipses conic sections

Question

This ellipse is centered at the origin. Find its question

vertices: (-4,0) and (4,0)

foci: (-3,0) and (3,0)

Answer 1

The equation for an ellipse centered at the origin is: (x/a)² + (y/b)² = 1 where a and b are the intercepts.

You should simply look up in a textbook of analytic geometry what definition of the foci and the vertices are.