This key facts covers Key Properties of y = mx + c within y = mx + c for GCSE Mathematics. Revise y = mx + c in Graphs for GCSE Mathematics with 10 exam-style questions and 20 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 4 of 9 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 9
Practice
10 questions
Recall
20 flashcards
Key Properties of y = mx + c
The Gradient (m)
- Positive m: Line slopes upward (↗)
- Negative m: Line slopes downward (↘)
- m = 0: Horizontal line (y = c)
- Large |m|: Steeper line
- Small |m|: Gentler slope
The Y-intercept (c)
- Positive c: Line crosses y-axis above x-axis
- Negative c: Line crosses y-axis below x-axis
- c = 0: Line passes through origin
- Large |c|: Line crosses y-axis far from origin