# NCERT Solutions for Class 10 Maths Chapter 7 Exercise 7.4

NCERT Solutions for Class 10 Maths Chapter 7 Exercise 7.4 Coordinate Geometry Optional exercise Nirdeshank Jyamiti in PDF format free to use or download in Hindi Medium as well as in English Medium for session 2020-21.

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## NCERT Solutions for Class 10 Maths Chapter 7 Exercise 7.4

 Class: 10 Maths (English and Hindi Medium) Chapter 7: Exercise 7.4

### 10 Maths Chapter 7 Exercise 7.4 Solutions

Class 10 Maths Chapter 7 Exercise 7.4 (Optional) Coordinate Geometry in English as well as Medium free to use ONLINE or DOWNLOAD as PDF to use offline or View in Video Format. प्रश्नावली ७.४ के प्रश्न शेष प्रश्नावलियों के तुलना में कुछ अलग हैं। प्रत्येक प्रश्न आपने आप में विविधता लिए हुए है, जो इसको अन्य प्रश्नावलियों से अलग करता है। Move Class 10 Maths Chapter 7 main page for other exercises to download or online study.

• ### Class 10 Maths Exercise 7.4 Solutions

#### Class 10 Maths Chapter 7 Exercise 7.4 Solution in Videos

Class 10 Maths Exercise 7.4 Explanation Video
Class 10 Maths Chapter 7 Exercise 7.4 Solution
##### What is abscissa?

x-coordinate of a point is called abscissa.

##### What is ordinate of a point?

y-coordinate is called the ordinate.

Four Quadrants: A plane is divided by the axis in four parts, known as quadrants.

##### What are the sign of x and y in four quadrants?

1. In first quadrant, both x and y coordinates of a point are + ve. For example (2, 3) lies in first Quadrant.
2. In second quadrant, x-coordinate is – ve and y-coordinates is + ve. For example (-2, 3) lies in Second Quadrant.
3. In third quadrant, both x and y coordinates of a point are negative. For example (-2, -3) lies in Third Quadrant.
4. In fourth quadrant, x-coordinate is + ve and y-coordinate is – ve. For example (2, -3) lies in Fourth Quadrant.

#### Important Terms on Coordinate Geometry

1. Let XOX’ and YOY’ are two mutually perpendicular lines. These lines are called co-ordinate axis. XOX’ is called x-axis and YOY’ is called y-axis.
2. Point of intersection of x-axis and y-axis i.e. O is called the origin whose coordinates are (0,0).

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