This GSEB Class 8 Maths Notes Chapter 15 Introduction to Graphs covers all the important topics and concepts as mentioned in the chapter.

## Introduction to Graphs Class 8 GSEB Notes

→ A bar graph is used to show comparison among categories.

→ Birth rate, death rate, rain, production of crop, results of cricket & football matches, etc. are represented by bar graph in newspapers, magazines and on television.

→ It is easier to understand, compare and remember informations given by bar graph.

→ A pie graph is used to compare parts of whole.

→ A Histogram is a bar graph which shows data in intervals.

→ A line graph displays data that changes continuously over period of time.

→ The relation between dependent variable and independent variable is shown through graph.