Find the best tutors and institutes for Class 9 Tuition
Search in
You have studied Linear equations in one variable in your previous classes. You have
also learnt that such equations have only one solution. Now let’s go a step ahead and
learn about linear equations in two variables. How many solutions does a linear
equation with two variables have? What does the solution look like on the Cartesian
plane?
You’ll be able to answer all such questions in Class 9, Chapter 4 – Linear Equations in
two variables. To understand this chapter clearly, it is crucial for you to have a solid
knowledge of linear equations in one variable, as the key concepts of the same are
extended to that of two variables in this chapter.
4.1 Introduction
4.2 Linear Equations
4.3 Solution of a Linear Equation
4.4 Graph of a Linear Equation in Two Variables
4.5 Equations of Lines Parallel to x-axis and y-axis
4.6 Summary
Section 4.2 – With solved examples given in this section, you’ll learn what a linear
equation in two variables is, and how it is different from linear equations in one
variable.
Section 4.3 – Once you understand what linear equation in two variables is, you can
look into the solutions for the same. Interestingly, in two variables, even the solutions
are a pair of values, one related to ‘x’ and another related to ‘y’. You’ll also learn that a
linear equation in two variables has infinite solutions. Besides exercises, examples &
solutions, figures are also given accompanied by remarks for better understanding.
Section 4.4 – Apart from solving the linear equations in two variables algebraically, in
this section, you’ll learn how to solve such equations geometrically. You’ll even get a
clear idea of how to represent the linear equations in two variables graphically on the
Cartesian plane. It is also known as the graph of the linear equations.
Section 4.5 – In this section, you’ll learn about the equations of those lines which are
parallel to x-axis and y-axis.
You can solve exercises of Linear Equations in Two Variables with the help of NCERT
Solutions for Class 9 Maths – Chapter 4. Download the NCERT Solutions for Class 9 Maths Chapter 4 PDF, solved by expert maths trainers and find solutions to all your problems.
Published on 2019-09-16 15:06:12 by arunima. Last Modified on 2019-09-16 15:06:12
How helpful was it?
How can we Improve it?
Please tell us how it changed your life *
Please enter your feedback
Recommended Articles
How To Choose The Right School For Children?
Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...
6 Healthy Habits of School Children
While schools provide formal education to the children, the home is where they start learning about things informally. Parents think that schools will take the initiative to educate their children. Well, this is partially true, as parents also play an essential role in bringing up their child. For the development of particular...
Top Benefits of e-Learning
With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...
Find best tutors for Class 9 Tuition Classes by posting a requirement.
Get started now, by booking a Free Demo Class