Class-9 Maths Chapter-4 Exercise 4.3 Solutions. Class-9 NEW NCERT BOOK MATHS

Exercise 4.3 of Chapter 4, Linear Equations in Two Variables, helps students understand how linear equations can be represented on a graph. In this exercise, different equations are solved by finding suitable values of the variables and plotting the corresponding points on the Cartesian plane. After plotting the points, they are joined to form a straight line, showing that every linear equation in two variables represents a straight line. This exercise also explains how to identify whether a given point lies on a line and how graphs help us understand the relationship between two variables. It develops important mathematical skills such as plotting points accurately, reading coordinates, and interpreting graphs. These concepts are useful in solving practical problems involving distance, cost, time, and other real-life situations. Exercise 4.3 strengthens students' understanding of coordinate geometry and prepares them for more advanced topics in algebra and graphing. By completing this exercise, students improve their logical thinking, problem-solving abilities, and confidence in using graphs to represent mathematical relationships.