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🔍 PREVIEW MODE – Only you can see this. Back to Admin EduTek Lesson Notes Shop Print PDF Home › SS › Mathematics › Graphs I SS 1 Graphs I – Cartesian Plane & Linear Graphs Mathematics SS 1 Third Term Introduction to the Cartesian Plane The Cartesian plane (also called the coordinate plane) is a two-dimensional plane used to represent points, lines, and curves. It was developed by the French mathematician René Descartes (1596–1650). 📌 Key Concepts: Cartesian Plane: A plane formed by two perpendic [Preview only]