Locus

A locus is the path traced by a moving point that obeys a given condition, such as staying a fixed distance from a point, which produces a circle. We translate the condition into an equation in $x$ and $y$ using distance formulas, then simplify to describe the curve.

You meet Locus in the Coordinate Geometry chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.

Our teachers make sure a student can not only recite what Locus means but use it fluently in a full solution.

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Locus (EN) · Lokus (BM) · 轨迹 (中文)

Other key terms from the Coordinate Geometry chapter you may want to check:

• Midpoint
• Gradient
• Division of a Line Segment
• Parallel Lines
• Perpendicular Lines
• Area of a Polygon