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Get NCERT Solutions of Chapter 4 Class 9 Linear Equations in Two Variables free at Teachoo. You can get solutions of all exercises and examples of the NCERT book.

**Linear equations** are equations where power of the variable is 1.

For example - x^{2} + x + 1 = 0 is not a linear equation as power of x is 2.

But x + y = 1 is a linear equation as power of x and y is 1.

We will be studying Linear Equations in 2 variables in this chapter

The topics covered in the chapter are

- What are
**Linear Equations in 2 Variables** **General Form**of Linear Equations**Finding Solution**of a Linear Equation (There are infinite solutions of a linear equation)- How to draw a
**Graph of Linear Equation** - What is the
**equation of x-axis and y-axis** - And
**equation of lines parallel to x-axis**(it is of the form y = k) and equation of lines parallel to**y-axis**(it is of the form x = k) - Equation of line
**passing through Origin**(It is of the form y = mx)

Check out the topics and exercises below to start doing the chapter

Note:

Important questionsof each exercise have also been marked