Скачать или смотреть 9TH Class Math New Book 2025 II Exercise 7.2 Question 11 II PCTB, Coordinate Geometry

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Check if Lines Are Parallel, Perpendicular, or Neither | Class 9 Math | Math Community

In this video, we will learn how to check whether two given lines are parallel, perpendicular, or neither, using the concept of slopes (gradients). This concept is a part of Coordinate Geometry and is essential for solving many broad-level geometry and algebra questions.

📌 What you will learn in this video:

✅ How to find the slope of a line from its equation or two points
✅ Conditions for lines to be:
  📎 Parallel → same slope
  📎 Perpendicular → product of slopes = -1
✅ Practice problems based on board exam pattern
✅ How to interpret line equations in different forms (slope-intercept, general, etc.)
✅ Geometry + algebra-based explanation with diagrams

🧠 We’ll also solve multiple examples to make the concept crystal clear.
Perfect for 9th-class students, math teachers, and exam preparation.

📖 Based on the official Punjab Textbook Board – Grade 9 Mathematics Curriculum.