NCERT has designed the chapter 3 of the textbook,”Coordinate Geometry” in such a way so that it teaches you about the various concepts of Geometry such as cartesian planes or co-ordinate axes and even about plotting points in a plane. NCERT Solutions For Class 9 Maths Chapter 3- Coordinate Geometry Exercise 3.3 helps you to learn about plotting a point in a plane if it’s coordinates are given.

Subject matter experts who designed these NCERT solutions will ensure that the answers to these questions under the exercise 3.3 of the textbook is given in easy to understand language, with simple examples. It helps you to be thorough with the concept and thus to score high in the exams. It also becomes easy for you to prepare for the exams, as you will be more familiar with the questions of the exercise.

## NCERT Solutions for class 9 Maths Chapter 3- Coordinate Geometry Exercise 3.3

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: • (– 1, 0): Negative x-axis

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

$\begin{array}{|l|l|l|l|l|l|} \hline \mathbf{x} & -2 & -1 & 0 & 1 & 3 \\ \hline \mathrm{y} & 8 & 7 & -1.25 & 3 & -1 \\ \hline \end{array}$

Solution:

The points to plotted on the (x, y) are:

i. (-2, 8)

ii. (-1, 7)

iii. (0, -1.25)

iv. (1, 3)

v. (3, -1)

On the graph mark X-axis and Y-axis. Mark the meeting point as O.

Now, Let 1 unit = 1 cm i. (-2, 8): II- Quadrant, Meeting point of the imaginary lines that starts from 2 units to the left of origin O and from 8 units above the origin O

ii. (-1, 7): II- Quadrant, Meeting point of the imaginary lines that starts from 1 units to the left of origin O and from 7 units above the origin O

iii. (0, -1.25): On the x-axis, 1.25 units to the left of origin O

iv. (1, 3): I- Quadrant, Meeting point of the imaginary lines that starts from 1 units to the right of origin O and from 3 units above the origin O

v. (3, -1): IV- Quadrant, Meeting point of the imaginary lines that starts from 3 units to the right of origin O and from 1 units below the origin O.

This exercise helps you to simplify the process of plotting a point in the plane if its Coordinates are given. The NCERT Solutions for Class 9 Maths Chapter 3- Coordinate Geometry Exercise 3.3 of the NCERT textbook contain 2 questions and the first question asks you to identify the quadrant or the axis, on which the specified points lie.

More in depth explanation and accurate solution can be accessed from the NCERT Chapter wise solutions that we have provided. The 2 questions asked in this exercise are long answer questions and requires you to locate or plot the points as specified in each question.