# NCERT Class 8 Mathematics Solutions: Chapter 15 –Introduction to Graph Exercise 15.2 Part 1

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1. Plot the following points on a graph sheet. Verify if they lie on a line

(a)

(b)

(c)

Answer:

(a) Points lie on a vertical line.

(b) Points also make a line. It verifies that these points lie on a line.

(c) These points do not lie in a straight line.

2. Draw the line passing through. Find the coordinates of the points at which this line meets the x-axis and y-axis.

Answer:

The coordinates of the points at which this line meets the x -axis at and y-axis at

1. Write the coordinates of the vertices of each of these adjoining figures.

Answer:

Vertices of figure OABC

Vertices of figure PQRS

Vertices of figure LMK

2. 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 will lie on y-axis.

(iii) The coordinates of the origin are

Answer:

(i) True

(ii) False, it will lie on x-axis.

(iii) True