Question

a parabola is the set of all points that: a. are the same distance from one point. b. are the same distance from a point and a line. c. are the same distance from two points. d. are the same distance from two lines.

Explanation:

A parabola is defined as the set of all points in a plane that are equidistant from a fixed - point (the focus) and a fixed - line (the directrix).

Answer:

B. are the same distance from a point and a line.