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Reading straight lines

Coordinate grid with two parallel lines of gradient 2 and a perpendicular line of gradient minus one half, with a right angle marked

Most straight-line questions become easier when the equation is written as $y = m x + c$ . Here, $m$ is the gradient, which tells you how steep the line is, and $c$ is the $y$ -intercept, so the line crosses the $y$ -axis at $(0, c)$ .

Parallel and Perpendicular Lines Lesson

IGCSE
Maths
Parallel and Perpendicular Lines

Step-by-step lessons covering Edexcel IGCSE Maths Parallel and Perpendicular Lines for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.

Lessons

x

Reading straight lines

Coordinate grid with two parallel lines of gradient 2 and a perpendicular line of gradient minus one half, with a right angle marked

Most straight-line questions become easier when the equation is written as $y = m x + c$ . Here, $m$ is the gradient, which tells you how steep the line is, and $c$ is the $y$ -intercept, so the line crosses the $y$ -axis at $(0, c)$ .

Parallel and Perpendicular Lines Lesson

IGCSE
Maths
Parallel and Perpendicular Lines

Step-by-step lessons covering Edexcel IGCSE Maths Parallel and Perpendicular Lines for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.