UNIT 10 : THE CONICS

LESSON 1: DEFINITION OF LOCUS

The Concept of Locus:

Locus is derived from the Latin word for place or position.

Definition: A locus of points is a set of points which satisfy one or more given conditions.

A simple example is a circle. A circle is a locus (set) of points each of which is a constant distance

from a fixed point. The fixed point is the centre of the circle and the fixed distance is the radius.