**NCERT Solutions for Class 8 Maths Chapter 15
Introduction to Graphs Ex 15.2**

NCERT Solutions for Class 8 Maths Chapter 15 Introduction to
Graphs Ex 15.2 are the part of NCERT Solutions for Class 8 Maths. Here you can
find the NCERT Solutions for Class 8 Maths Chapter 15 Introduction to Graphs Ex
15.2**.**** **

**NCERT Solutions for Class 8 Maths Chapter 15 Introduction to Graphs Ex 15.1****NCERT Solutions for Class 8 Maths Chapter 15 Introduction to Graphs Ex 15.2****NCERT Solutions for Class 8 Maths Chapter 15 Introduction to Graphs Ex 15.3**

**Ex 15.2 Class 8 Maths Question 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)

**Solution:**

**(a)** Draw the x-axis and y-axis on a graph paper. Plot the points
A(4, 0), B(4, 2), C(4, 6) and D(4, 2.5) as shown.

Clearly, these points lie on a line ABDC.

**(b) **Draw the x-axis and y-axis on a graph paper. Plot
the points P(1, 1), Q(2, 2), R(3, 3) and S(4, 4) as shown.

Clearly, these points lie on
a line PQRS.

**(c)** Draw
the x-axis and y-axis on a graph paper. Plot the points K(2, 3), L(5, 3), M(5,
5) and N(2, 5) as shown.

**Ex 15.2 Class 8
Maths Question 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.

**Solution:**

Draw the x-axis and y-axis on a graph paper. Plot the points P(2, 3) and Q(3,
2). Join PQ and produce PQ on both sides to meet the x-axis at A and y-axis at B.
Clearly, the coordinates of A and B are (5, 0) and (0, 5), respectively.

**Ex 15.2 Class 8
Maths Question 3.**

Write the coordinates of the vertices of each of these adjoining figures.**Solution:**

From the graph, the coordinates of the vertices of rectangle OABC are:

O(0, 0), A(2, 0), B(2, 3) and C(0, 3)

From the graph, the coordinates of the vertices of parallelogram PQRS are:

P(4, 3), Q(6, 1), R(6, 5) and S(4, 7)

From the graph, the coordinates of the vertices of triangle KLM are:

K(10, 5), L(7, 7) and M(10, 8)

**Ex 15.2 Class 8
Maths Question 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 coordinates of the origin are (0, 0).

**Solution:**

**(i)** True.

**(ii)** False.
Correct statement is: A point whose y-coordinate is zero and x-coordinate is 5
will lie on x-axis.

**(iii)** True.

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