CBSE Class 9 Mathematics – Linear Equations in Two Variables

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Study Materials

9th

9th - Mathematics

Linear Equations in Two Variables

Chapter Overview

The chapter 'Linear Equations in Two Variables' introduces equations involving two variables that have linear relationships. Students will learn how to form such equations, find their solutions, and represent them graphically on a coordinate plane. This concept sets the foundation for coordinate geometry and algebraic methods used in higher classes.

Important Keywords

  • Linear Equation: An equation of the form ax + by + c = 0, where a, b, and c are real numbers and a and b are not both zero.
  • Solution: A pair of values (x, y) that satisfies the given linear equation.
  • Graph: A straight line that represents all the solutions of the linear equation.
  • Coordinate Plane: A plane formed by the intersection of a horizontal (x-axis) and a vertical (y-axis) number line.

Detailed Notes

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