x

What $y = m x + c$ means

Graph of the line y = 2x + 3 with y-intercept at (0,3) and a rise of 4 over a run of 2 labelled to show gradient 2

A straight line is usually written as $y = m x + c$ . In this form, $m$ is the gradient and $c$ is the y-intercept.

Equation of a Line Lesson

GCSE
Maths
Equation of a Line

Step-by-step lessons covering Edexcel GCSE Maths Equation of a Line for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons

x

What $y = m x + c$ means

Graph of the line y = 2x + 3 with y-intercept at (0,3) and a rise of 4 over a run of 2 labelled to show gradient 2

A straight line is usually written as $y = m x + c$ . In this form, $m$ is the gradient and $c$ is the y-intercept.

Equation of a Line Lesson

GCSE
Maths
Equation of a Line

Step-by-step lessons covering Edexcel GCSE Maths Equation of a Line for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.