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

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

Edited By Safeer PP | Updated on Jul 29, 2022 03:59 PM IST

Till now in question the points have already been marked and we have been asked to tell the coordinates but in NCERT Solutions for Class 9 Maths chapter 3 exercise 3.3. We have been given points to plot on the plane; for example, if we were given a point to plot in the cartesian plane, the first step would be to draw coordinate axes, and then we would choose a scale for the coordinate axis, such as 1 centimeter.

This Story also Contains
  1. Coordinate Geometry Class 9 Chapter 3 Exercise: 3.1
  2. More About NCERT Solution for Class 9 Maths Chapter 3 Exercise 3.3
  3. Benefits of NCERT Solutions for Class 9 Maths Exercise 3.3
  4. NCERT Solutions of Class 10 Subject Wise
  5. Subject Wise NCERT Exemplar Solutions

NCERT book Class 9 Maths exercise 3.3 is a foundation exercise for the branch of coordinate geometry as well as all of the chapters that will be covered in subsequent sessions. The following activities are included in Class 9 Mathematics chapter 3 exercise 3.3.

Coordinate Geometry Class 9 Chapter 3 Exercise: 3.1

Q1 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.

Answer:

(-2,4) lies in second quadrant

(3,-1) lies in fourth quadrant

(-1,0) lies in second quadrant

(1,2) lies in first quadrant

(-3,-5) lies in third quadrant

Q2 Plot the points (x, y) given in the following table on the plane, choosing suitable unitsof distance on the axes.

x -2 -1 0 1 3
y 8 7 -1.25 2 -1

Answer:

So, the graph of the given points is

1640063894510

More About NCERT Solution for Class 9 Maths Chapter 3 Exercise 3.3

Chapter 3 exercise 3 in Class 9 Math offers numerous subtopics that are necessary for understanding coordinate geometry, one of which is ordered pairs. As we saw in the NCERT syllabus for Class 9 Maths exercise 3.3, Because coordinates are written as (x,y), the location of (x, y) in the Cartesian plane differs from the position of (x, y) in the Cartesian plane if x y. (y, x). As a consequence, if we swap the x and y coordinates, the location of (y, x) will be different from the position of (y, x) (x, y). This means that the order of x and y matters when it comes to how we write them (x, y). As a result, (x, y) is referred to as an ordered pair. Both x and y should be expressed exactly as they are supplied since swapping them will result in a completely different coordinate. Plotting a point in the plane if its coordinates are supplied (Exercise 3.3 Class 9 Maths) covers all forms of fundamental questions that may be generated on Plotting a point in the plane if its coordinates are given (Exercise 3.3 Class 9 Maths).

Also Read| Coordinate Geometry Class 9 Notes

Benefits of NCERT Solutions for Class 9 Maths Exercise 3.3

  • Plotting a Point on the Plane if its Coordinates are Given is a basic concept covered in Class 9 Mathematics chapter 3 problem 3.1.

  • NCERT Class 9 Maths chapter 3 exercise 3.3, will be helpful in Class 10 Maths chapter 7 coordinate geometry as the chapter starts with assuming that we know how to plot points, locate them and which quadrant they belong.

  • Class 11 Mathematics chapter 10 straight line and Class 11 Maths chapter 11 conic section would benefit from NCERT solutions for exercise 3.3 Class 9 Maths chapter 3.

  • Exercise 3.3, Class 9 Maths, is also a foundation idea for several joint entrance test themes (JEE Main).

Also see-

NCERT Solutions of Class 10 Subject Wise

Subject Wise NCERT Exemplar Solutions

Frequently Asked Question (FAQs)

1. How to know a coordinate belonging to which quadrant without plotting them in the cartesian plane?

We can know that by using general forms (+ , +) in the first quadrant, (–, +) in the second quadrant, (–, –) in the third quadrant and (+, –) in the fourth quadrant

2. How many activities are covered before Class 9 Maths chapter exercise 4.1?

One activity is covered before Class 9 Maths chapter  exercise 4.1

3. What is topic of activity covered before Class 9 Maths chapter exercise 4.1?

It is a game in which we will use two dice of separate colour and then we will take coordinate as number appeared on dice as there are two dices one will show x coordinate and other will show y coordinate 

4. How to deduce the scale of the coordinate axis?

Many a scale is of 1 unit =1 centimeter but if the coordinate are bigger such as (20,90);(30,80) then scale can be of 1 unit = 10 centimeter 

5. What does +x,+y and -x,-y depict in a coordinate plane?

+x and +y show positive real numbers and -x and -y show negative real numbers as cartesian planes have only real numbers.

6. In the NCERT answers for Class 9 Maths chapter 4 exercise, how many questions are covered?

In Class 9 Mathematics chapter exercise 4.1, there are two problems.

7. How many solved examples are there before the NCERT solutions for the Class 9 Mathematics chapter 4 exercise?

Before the NCERT solutions for Class 9 Mathematics chapter 4 exercise, there are two solved examples.

8. What kinds of questions do the NCERT answers for Class 9 Mathematics chapter 4 cover?

Question one is about telling the quadrant in which coordinate is located and in question two we have to plot the points in the cartesian plane 

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