Ex. 2.6 Linear Polynomials | Ch-2 Class 9 Maths | Graphs & Role of a and b | Sanyam Bhayana

Complete solutions for Ex. 2.6 of Class 9 Maths Ganita Manjari Chapter 2 — draw graphs of sets of linear equations y = ax + b and comment on the role of a (slope) and b (y-intercept). New NCERT 2026-27 syllabus, explained step by step in Hindi. 📌 TELEGRAM (NOTES): https://t.me/+cbiN5dwvTSNkZTg1 📲 INSTAGRAM:   / sanyambhayanaclass9and10   ___________________________________________ ✅ WHAT YOU'LL LEARN IN THIS LECTURE: How to draw graphs of linear equations by finding two points Part 1 — Graph y = 4x, y = 2x, y = x and comment on role of a & b (different slopes, b = 0) Part 2 — Graph y = -6x, y = -3x, y = -x and comment on role of a & b (negative slopes, b = 0) Part 3 — Graph y = 5x and y = -5x; parallel lines vs intersecting lines Part 4 — Graph y = 3x - 1, y = 3x, y = 3x + 1; same slope → parallel lines, different y-intercepts Part 5 — Graph y = -2x - 3, y = -2x, y = 2x + 3; mixed slopes and intercepts Role of a: determines slope — if a is the same for two lines, they are parallel Role of b: determines y-intercept — where the line crosses the y-axis ___________________________________________ 📚 This lecture is useful for Class 9 students of CBSE, ICSE, UP Board, Bihar Board, MP Board, Haryana Board, Punjab Board, and all other state boards following the Ganita Manjari / NCERT syllabus for Session 2026-27. ___________________________________________ 👨‍🏫 ABOUT THE TEACHER: Sanyam Bhayana is a Class 12 State Topper (99.8%) and Gold Medalist from Shri Ram College of Commerce (SRCC), New Delhi. He has helped hundreds of students score 100/100 in board exams. ___________________________________________ ⏱ CHAPTERS: 0:00 Introduction 0:41 Q1(i) — y = 4x, 2x, x (positive slopes, b = 0) 6:31 Role of a and b Explained 10:28 Q1(ii) — y = -6x, -3x, -x (negative slopes, b = 0) 16:02 Q1(iii) — y = 5x and y = -5x 18:51 Q1(iv) — y = 3x - 1, 3x, 3x + 1 (parallel lines) 24:05 Q1(v) — y = -2x - 3, -2x, 2x + 3 ___________________________________________ 💬 Got a doubt? Drop it in the comments — Sanyam Sir answers personally. ___________________________________________ 📂 CLASS 9 MATHS COMPLETE NCERT PLAYLIST: Class 9 Maths Ganita Manjari:    • CLASS 10 MATHS FULL COURSE (2026-2027)   ___________________________________________ Ex. 2.6 Ganita Manjari Class 9 Maths covers graphing linear equations y = ax + b and understanding the role of slope (a) and y-intercept (b) — essential for CBSE, UP Board, Haryana Board, and all state boards using the new NCERT 2026-27 textbook. Students preparing for Class 9 Maths Chapter 2 Introduction to Linear Polynomials will find this complete graph-drawing guide with