Class 8 Maths – Chapter 15: Introduction to Graphs
Step 10: Complete Revision + Exam Questions
1️⃣ Quick Revision Points
- Graph shows relationship between two quantities
- X-axis → Horizontal | Y-axis → Vertical
- Coordinates are written as (x, y)
- Origin = (0, 0)
- Four quadrants used for plotting
- Graphs help in real-life situations
2️⃣ Important Exam Questions
VSA (1 mark)
- What is the origin?
- What is a coordinate?
SA (2–3 marks)
- Explain the use of graphs in daily life.
- Write steps to plot a point on a graph.
LA (5 marks)
- Draw and explain a distance–time graph.
- Explain how to read information from a line graph.
3️⃣ Common Exam Mistakes
- Writing (y, x) instead of (x, y)
- Ignoring scale on axes
- Forgetting units
4️⃣ Mind Map (Text Version)
- Graphs
- Axes → X & Y
- Origin → (0,0)
- Coordinates → (x,y)
- Quadrants → I, II, III, IV
- Applications → Distance, Time, Temperature
5️⃣ Super Easy Memory Tricks
- X → Cross (sideways)
- Y → Why (up/down)
- 📈 Up = Increase | 📉 Down = Decrease
🎯 Exam Tip: Neat graphs + correct scale = full marks!
📘 Class 8 Mathematics – Complete Library
CBSE | NCERT | State Syllabus
Chapter 1: Rational Numbers
Chapter 2: Linear Equations in One Variable
Chapter 3: Understanding Quadrilaterals
Chapter 4: Practical Geometry
Chapter 5: Data Handling
Chapter 6: Squares and Square Roots
Chapter 7: Cubes and Cube Roots
- NCERT Notes
- MCQs
- Worksheet
- Worksheet Answers
- Mind Map & Easy Tricks
- Important Exam Questions
- Very Important Questions
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