Locus
Maths: Edexcel GCSE Higher, topic 4.17.4
Locus of Points
A locus is a line of points (or an area) that all fit some rule.

Locus of points a fixed distance from a point
- The locus of points a fixed distance from a given point forms a circle and can be drawn using a compass centred on the point.

Locus of points a fixed distance from a line
- The locus of points a fixed distance from a given line forms an oval.
- The straight sides are drawn with a ruler, parallel to the original line at the distance required and the ends are drawn with a compass put at the end of the line.
Test yourself on Locus
The locus of points from a single point creates what shape?
The locus of points at a fixed distance from a straight line forms what shape?
Is this the locus of points for a straight line or a single point?