# 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 निर्देशांक ज्यामिति in PDF form free to use or download in Hindi Medium as well as in English Medium for session 2020-21.

NCERT Offline Apps 2020-2021 and NCERT Solutions online contents are in Video Format free to DOWNLOAD or use ONLINE without downloading. All NCERT Solutions and CBSE Apps are updated on the basis of Latest CBSE Syllabus 2020-21.## NCERT Solutions for Class 10 Maths Chapter 7 Exercise 7.4

Class: | 10 |

Subject: | Maths – गणित |

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.

##### What is abscissa?

x-coordinate of a point is called abscissa.

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

y-coordinate is called the ordinate.

##### What are quadrants?

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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