NCERT Solutions for Class 8 Mathematics, it includes all the questions provided as per the new revised syllabus in NCERT Class 8 Maths textbook. These solutions are prepared by subject experts from BYJU’S and as per the CBSE syllabus prescribed by the board for the Class 8. Introduction to graphs is a crucial chapter in the 8th standard maths book for Class 8 and students need to be thorough with all the concepts. NCERT Class 8 exercise 15.2 is mainly based on linear graphs. Students can download the pdf of Maths Class 8 Chapter 15 NCERT Solutions and learn offline as well.
Access Other Exercise Solutions of Class 8 Maths Chapter 15 Introduction to Graphs
Access Answers to NCERT Class 8 Maths Chapter 15 Introduction to Graphs Exercise 15.2 Page number 243
1. Plot the following points on a graph sheet. Verify if they lie on a line
(a) A(4,0), B(4, 2),C(4,6), D(4, 2.5)
(b) P(1, 1), Q(2, 2), R(3,3), S(4, 4)
(c) K(2, 3), L(5, 3), M(5,5), N(2, 5)
Plot all the points on the graph.
(a) All points A,B, C and D lie on a vertical line.
(b) P,Q, R and S points also make a line .It verifies that these points lie on a line.
(c) Points K, L, M and N. These points do not lie in a straight line.
2. Draw the line passing through (2,3)and(3,2).Find the coordinates of the points at which this line meets the x-axis and y-axis.
Graph for the Line passes through points (2, 3) and (3, 2) is:
The coordinates of the points at which this line meets the x-axis at (5, 0) and
Y axis at (0,5).
3. Write the coordinates of the vertices of each of these adjoining figures.
We can observe three figures named as, OABC, PQRS and LMK.
Vertices of figure OABC
O (0, 0), A (2, 0), B (2, 3) and C (0, 3)
Vertices of figure PQRS
P (4, 3), Q (6, 1), R (6, 5) and S (4, 7)
Vertices of figure LMK
L (7, 7), M(10, 8) and K(10,5)
4. State whether True or False. Correct that are false.
(i) A point whose x coordinate is zero and y-coordinate is non-zero will lie on the y-axis.
(ii) A point whose y coordinate is zero and x-coordinate is 5 will lie on y-axis.
(iii) The co-ordinates of the origin are (0, 0).
ii) False, it will lie on x axis
NCERT Class 8 Maths Chapter 15 Introduction to Graphs Exercise 15.2, based on Linear Graphs. In this section, students will learn what a linear graph is and how to draw it? How to locate points conveniently on a graph sheet, basically “Location of a point” and their Coordinates.