Class 8th is very important for the students because many new concepts are introduced which are helping them to create a base of many important concepts. Chapter Introduction to Graph is one of the important topics to build basic knowledge about the graphs. In NCERT Solutions for Class 8 Maths Chapter 15 Introduction to Graphs, we study about the different types of graphs like Bar graph, Pie graph ( or pie chart or a circle graph), Line graph etc.
In daily life, we see different types of graphs on television like in the cricket match comparison of the score of two teams, in newspapers business analysis and also in books, etc. Have you think sometimes what is a graph, what is the purpose of graphs and what is the type of graphs. The answer to these questions clearly describes in Class 8 Maths Chapter Introduction to Graphs. Basically, the graph is a visual representation of data collected and the purpose of the graph is to show collected data or numerical facts in visual form so that anyone can understand it easily, quickly and clearly and also to understand better, data is represented in a graph rather than in a table because the graphs have the ability to comparison and reveal trend. In NCERT Class 8 Introduction to Graphs, we study different types of graphs like- Bar graph, Pie graph ( or pie chart or a circle graph), Histogram, Line graph, and Linear graph. Depend on the data and need, use a different type of graphs like if data changes continuously with time use Line graph and a Histogram is a bar graph that shows data in intervals. In this, there are 3 exercises with 65 questions.
Draw the following graph and observe yourself. Can you find any relation between the given value of x and y
|Chapter -1||Rational Numbers|
Q.6 A courier-person cycles from a town to a neighbouring suburban area to deliver a parcel to a merchant . His distance from the town at different times is shown by the following graph.
(d) Did the person stop on his way? Explain.
Q.4 State whether True or False. Correct
that are false.
(iii) The coordinates of the origin
are (0, 0).
Q.3 For an experiment in Botany, two different plants, plant A and plant B were grown
under similar laboratory conditions. Their heights were measured at the end of each
week for 3 weeks. The results are shown by the following graph.
(b) How high was Plant B after (i) 2 weeks (ii) 3 weeks?