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Parallel and Perpendicular Lines
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Slopes and line equations

Slopes and line equations

Side-by-side coordinate graphs showing parallel lines with matching rise-run triangles and perpendicular lines meeting at a right angle

Straight lines are easiest to compare when written in the form y=mx+cy=mx+cy=mx+c. In this form, mmm represents the gradient and ccc represents the y-intercept.

Parallel and Perpendicular Lines Lesson

  1. GCSE
  2. /Maths
  3. /Parallel and Perpendicular Lines

Step-by-step lessons on CCEA GCSE Maths Parallel and Perpendicular Lines. Each one builds up to exam-style questions. 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.