Have you seen graphs in the newspapers, television, magazines, books etc.? The purpose of the graph is to show numerical facts in visual form so that they can be understood quickly, easily and clearly. Thus, graphs are visual representations of data collected. Data can also be presented in the form of a table; however a graphical presentation is easier to understand. This is true in particular when there is a trend or comparison to be shown. Students have already seen some basic types of graphs.
NCERT Grade 8 Mathematics Chapter 15, Introduction to Graphs deals with some complex graphs that will teach the students different forms of graphical representation of data.Some of the main topics covered in this chapter are Introduction to Graphs, A Bar graph, A Pie graph (or a circle-graph), A histogram, A line graph, Linear Graphs, Location of a point, Coordinates and Some Applications.New concepts, interesting problems, solved and unsolved examples and simple language, make NCERT Grade 8 Mathematics Chapter 15, Introduction to Graphs interesting and fun to learn.
Summary, Do Yourself Activities and Group exercises help the students to dive into the world of Graphs with a throttle and master the topic.With an in-depth study of this chapter and solving of the problems will help the students to solve complex problems easily. This topic will help the students to build a strong foundation for the topic, Introduction to Graphs. Get 100 percent accurate NCERT Solutions for Class 8 Maths Chapter 15 (Introduction to Graphs) solved by expert Maths teachers. We provide step by step solutions for questions given in class 8 maths text-book as per CBSE Board guidelines from the latest NCERT book for class 8 maths. The topics and sub-topics in Chapter 15 Introduction to Graphs are given below.
15.1 - Introduction
15.1.1 - A Bar graph
15.1.2 - A Pie graph (or a circle-graph)
15.1.3 - A histogram
15.1.4 - A line graph
15.2 - Linear Graphs
15.2.1 - Location of a point
15.2.2 - Coordinates
15.3 - Some Applications
We cover all exercises in the chapter given below:-
EXERCISE 15.1 - 7 Questions with Solutions
EXERCISE 15.2 - 4 Questions with Solutions
EXERCISE 15.3 - 2 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Introduction to Graphs. You can also download the free PDF of Chapter 15 Introduction to Graphs and take the print out to keep it handy for your exam preparation.