This key facts covers Key Methods for Straight Line Graphs 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 4 of 7 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 4 of 7
Practice
14 questions
Recall
20 flashcards
Key Methods for Straight Line Graphs
1. Drawing from a Table of Values
- Create a table with x and y values
- Substitute x values into the equation
- Calculate corresponding y values
- Plot the coordinates
- Draw a straight line through all points
2. Finding Points on a Line
For equation y = mx + c:
- Y-intercept: Set x = 0, so y = c
- X-intercept: Set y = 0, solve for x
- Any point: Choose x value, calculate y
3. Reading Information from Graphs
- Find where line crosses y-axis (y-intercept)
- Calculate gradient using two points
- Write equation in form y = mx + c