NCERT Solutions Class 9 Mathematics

Exercise 3.3

Q.1. In which quadrant or on which axis do each of the points (-2, 4), (3, -1), (-1, 0), (1, 2) and (-3, -5) lie? Verify your answer by locating them on the Cartesian plane.

Q.2. Plot the points (x, y) given in the following table on the plane, choosing suitable units of distance on the axes.

x

-2

-1

0

1

3

y

8

7

-1.25

3

-1

NCERT Solutions Class 9 Mathematics

Exercise 3.3

Q.1. In which quadrant or on which axis do each of the points (-2, 4), (3, -1), (-1, 0), (1, 2) and (-3, -5) lie? Verify your answer by locating them on the Cartesian plane.

Solution:

(-2, 4) → Second quadrant

(3, -1) → Fourth quadrant

(-1, 0) → x-axis

(1, 2) → First quadrant

(-3, -5) → Third quadrant

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Q.2. Plot the points (x, y) given in the following table on the plane, choosing suitable units of distance on the axes.

x

-2

-1

0

1

3

y

8

7

-1.25

3

-1

Solution:

Taking 1 unit = 1 cm, the points (x,y) on the plane are plotted below.

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