This exam tips covers Exam Tips within Straight Line Graphs for GCSE Mathematics. Revise Straight Line Graphs in Graphs for GCSE Mathematics with 14 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 6 of 8 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
💡 Exam Tips
- Use a ruler: Always draw straight lines with a ruler
- Extend lines: Draw lines across the full grid to show the complete relationship
- Label axes: Include units and scales on your axes
- Check with substitution: Verify your equation by substituting a point from the line
- Use sensible scales: Choose scales that make plotting easy and accurate
- Show working: When finding gradients, show the rise/run calculation clearly
Practice questions for Straight Line Graphs
A straight line has the equation y = 3x + 7. What is the gradient of this line?
Line A has equation y = 3x + 1. Line B has equation y = 3x - 5. Explain why lines A and B are parallel. Include the values of their gradients in your answer.
Quick recall flashcards
What is a linear relationship?
A relationship where one variable changes at a constant rate with respect to another, producing a straight line graph.
What is the y-intercept?
The point where the line crosses the y-axis, found when x = 0.