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Class 9 Mathematics Revision Notes for Coordinate Geometry of Chapter 3
Students can access the Coordinate Geometry Class 9 Mathematics Chapter 3 Notes from Extramarks that are in line with the CBSE syllabus and requirements. One of the essential practice strategies necessary for mathematics involves developing and regularly reviewing concepts. They can quickly review the syllabus with study materials for Class 9 Mathematics Chapter 3 Notes. Extramarks offer them these Chapter 3 Mathematics Class 9 Notes that will make the studying process simpler and will help them perform better in the test.
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ToggleClass 9 Mathematics Revision Notes for Coordinate Geometry in Chapter 3
Access Class 9 Mathematics Chapter 3 – Coordinate Geometry Notes
Coordinate Geometry Class 9 Notes–A Short Synopsis
Extramarks provide uncomplicated access to Class 9 Mathematics Chapter 3 Notes, enabling students to efficiently review the content. Additionally, it saves the students from having to browse the internet for quality materials as these notes are written by subject matter experts. What’s more? These notes follow the updated CBSE syllabus. Therefore, students can directly access accurate and reliable notes to improve their study efforts.
Notes of Coordinate Geometry: Topics Covered
The following subjects are covered in the Chapter 3 notes for Class 9 Mathematics:
 The Cartesian System and its associated terms
 Coordinate geometry and its definition
 Relationship between a point’s coordinates’ signs, describing the point’s location’s quadrant in more detail
 Finding the point in the plane when its coordinates are known
 Plotting of the points in the Cartesian plane
Class 9 Coordinate Geometry Notes
Cartesian System
Cartesian Plane
It is described as two parallel number lines, referred to as the xaxis and yaxis. The horizontal line is the xaxis, while the vertical line is the yaxis. The coordinate axes are these lines all put together. The Cartesian plane can also be extended in all directions indefinitely.
Origin:
The origin is the location where both axes perpendicularly intersect. Where these axes meet, right angles are formed.
Quadrants:
The abovementioned cartesian plane is divided into four sections or quadrants. I, II, III, and IV are the quadrants’ names, and they are arranged counterclockwise. It begins at the top right corner.
Signs of Points In Different Coordinates in The Cartesian Plane
The following are the indications of the points positioned in the various Cartesian quadrants:
 Quadrant I: In this quadrant, the values of both the xcoordinate and ycoordinate are positive. For example: (+2,+3)
 Quadrant II: In this quadrant, the value of the xcoordinate is negative while the ycoordinate is positive. For example: (2,+3)
 Quadrant III: In this quadrant, the values of both the xcoordinate and the ycoordinate are negative. For example: (2,3)
 Quadrant IV: In this quadrant, the values of both the xcoordinate are positive while the ycoordinate are negative. For example: (+2,3)
Plotting of Points on a Graph
Using coordinate axes, it is simple to plot points on a given graph in the plane using an ordered number of pairs. When point A’s coordinates are given as (x,y), x denotes the abscissa and y is the ordinate.
How to Plot a Point on the Cartesian Plane?
The coordinate points are used to determine a point’s location in the Cartesian plane. The xpoint designates the location on the horizontal axis, and the ypoint designates the location on the vertical axis.
For example, point (1,2). The negative xaxis is 1 unit away from this point, and the negative yaxis is 2 units away from this point. Other points are plotted in the same way.
Notes of Coordinate Geometry Class 9 How will they Help?
Coordinate geometry has a mark distribution of six marks out of the total 80 in the final examination. Usually, 2 or 3 short or long answer questions are asked in this chapter. Therefore, it is a good idea for the students to thoroughly learn and comprehend its concepts. Through the revision notes, they will be able to revise all the key points for this chapter. Students can easily and quickly learn the chapter by using a practical approach. Extramarks offers comprehensive notes that include points prepared by subject matter experts according to the revised CBSE syllabus.
Conclusion:
One of the simpler chapters on the Class 9 syllabus is Coordinate Geometry. To help in better understanding concepts, Extramarks break down the chapter into stepbystep revision notes. Students can clearly understand the notes as they include diagrams and wellorganised points to score a better understanding of the concepts. These points assist students in preparing not only for the current exams but also for the upcoming competitive exams. These Class 9 Mathematics Chapter 3 Notes are produced by subject matter experts to help students clear up their doubts and do well in tests.
FAQs (Frequently Asked Questions)
1. What are the benefits of Extramarks Class 9 Mathematics Chapter 3 Notes?
The following are some of the main benefits provided by Extramarks notes:
 These Class 9 Mathematics Chapter 3 Notes are structured that will help students develop the proper study habits.
 The notes explain the chapter’s fundamentals.
 The students’ efficiency can easily be increased by answering more questions.
 The answers to each question are fully explained.
Accessing these Class 9 Mathematics Chapter 3 Notes will allow students to answer the questions at their own pace and prepare accordingly.
2. What do ordinate and abscissa mean?
An object’s distance from the yaxis is referred to as its abscissa, and its distance from the xaxis is referred to as its coordinate.
3. How many points can the x and yaxes possibly intersect?
The origin is the only possible intersection of the x and yaxes.
4. Write down the coordinates of the origin.
The origin’s coordinates are represented as (0,0).