In this class 9 math chapter 7, you will learn from working with simple numbers to mapping out actual positions using the Cartesian coordinate system. Throughout this chapter 7, you will use vital mathematical tools, including the Distance Formula to find how far apart two points are, the Midpoint Formula to find the exact center between positions, and the Slope of a Line to find its steepness and direction. Here, the handwritten notes are fully updated according to the latest syllabus issued by the Punjab Curriculum and Textbook Board.