About Class 9 Maths Chapter 4 Linear Equations in Two Variables In this chapter, you will get to learn about linear equations and their applications in real life problems.

A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the linear equation.

There exists an extensive range of research looking at the teaching and learning of linear equations, resulting in many papers highlighting a range of teaching approaches and illustrating a variety of ...