Question

Which conic section is defined by the set of all points in a plane for which thesum of the distances to two fixed points equals a certain constant?A. CircleB. EllipseC. HyperbolaD. Parabola

Answer 1

An ellipse is oval in shape. It is traced by a point moving in a plane such that the sum of it's distances from two other points which are called the foci is constant. From the diagram, we can see the foci(plural of focus)

Thus, the correct option is

B. Ellipse