NCERT Solutions for Class 8 Maths Introduction to Graphs Ex 15.3 are based on the new syllabus for Class 8 Maths by CBSE. These solutions are a guide for the students that will resolve their doubts and solidify their conceptual understanding of the exercise. The solutions are available for free in pdf format. So, students can download them from our website and start practising them. Even if you understand this exercise well, refer to our NCERT solutions to check whether you have mentioned stepwise answers to every question or not.
The third exercise of NCERT Class 8 Maths Chapter 15 Introduction to Graphs is based on the applications of graphs. The exercise includes 3 questions where you are given data in tables and you have to create graphs from that. For example, in question three you are given interest on deposits for a year and you are given certain questions related to them. This is an important exercise from the exam perspective. You must check our NCERT Solutions for this exercise and match all your answers.
A graph can be used to represent the relationship between a dependent and an independent variable. Anything which is completely independent and its movement does not depend on any other factor is called an Independent Variable.
Anything which increases or decreases with the movement of any other factor or is dependent on any other factor is called a Dependent Variable.
For example, the following graph shows that the revenue will increase with the increase in the number of cars washed. So, the revenue is the dependent variable and the number of cars washed is an independent variable.
Let us now analyse the types of questions given in Exercise 15.3 for your better understanding:
Ex 15.3 Q1: In this question, you are given three different tables. You have to study them and form the graphs. The first table describes the cost of apples. The second table shows the distance travelled by car and the third table shows interest in deposits for a year. You have to identify the dependent and independent variables in each while forming the graphs.
Ex 15.3 Q2: In this second question, you are given two different tables. You have to draw their respective graphs and find out if the graphs are linear or not. You must know that a linear graph is a straight line graph.
Download exercise solutions for Class 8 Maths NCERT Chapter 15 Introduction to Graphs from the links given below:
There are 13 unsolved questions and 8 solved examples in NCERT Class 8 Maths Chapter 15 Introduction to Graphs.
You can find extra questions and practice worksheets for NCERT Class 8 Maths Chapter 15 Introduction to Graphs all exercises from the askIITians website. Our experts have created different study materials for your better understanding and practice of the chapter.
Our Maths experts have created a plethora of study resources for Chapter 15 Introduction to Graphs like revision notes, NCERT Solutions, extra questions, video-based solutions, practice sheets, mind maps and more. We also provide mini-courses for Class 8 and daily live, interactive classes for Class 8 Maths.