Class 8 Mathematics Chapter 13 Introduction to Graphs: NCERT Study Material
Review the NCERT Book Class 8 Maths Introduction to Graphs designed for Class 8 Mathematics students. Published under the latest NCERT guidelines for 2026-27, this chapter-wise resource supports daily study and targeted revision.
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View or download the dedicated Chapter 13 Introduction to Graphs resource below. This chapter-by-chapter structuring ensures easy navigation for daily study routines. For comprehensive exam preparation, pair this reading with our verified NCERT Solutions.
15.1 Introduction
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. We have already seen some types of graphs. Let us quickly recall them here.
15.1.1 A Bar graph
A bar graph is used to show comparison among categories. It may consist of two or more parallel vertical (or horizontal) bars (rectangles).
The bar graph in Fig 15.1 shows Anu’s mathematics marks in the three terminal examinations. It helps you to compare her performance easily. She has shown good progress.
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