Coordinate Geometry EP5 | Gradient (Slope) Formula, Parallel & Perpendicular Lines | GCSE | MathExam

📐 *Coordinate Geometry EP5 — Gradient (Slope)* Learn how to calculate the gradient of a straight line using coordinates, identify positive and negative gradients, and solve exam-style questions involving parallel and perpendicular lines. This lesson is suitable for students preparing for **GCSE, GCE and HKDSE Mathematics**, as well as anyone learning coordinate geometry. 📚 *What You Will Learn:* ✅ What is a gradient (slope)? ✅ Positive, negative, zero and undefined gradients ✅ The gradient formula: m=(y_2-y_1)/(x_2-x_1) ✅ Finding gradients from coordinates and graphs ✅ Parallel lines: (m_1=m_2) ✅ Perpendicular lines: (m_1 x m_2 = -1) ✅ Solving GCSE past-paper and exam-style questions ✅ Comparing parallel and perpendicular lines on coordinate graphs 🎓 *Who Is This Video For?* GCSE Mathematics | GCE Mathematics | HKDSE Mathematics | Secondary School Mathematics 📺 *About MathExam* MathExam provides clear, step-by-step mathematics lessons, worked examples and exam-style practice questions to help students understand mathematical concepts and prepare for examinations. 👍 If you find this lesson helpful, please LIKE, SHARE and SUBSCRIBE to MathExam! 🔔 Subscribe for more mathematics lessons. 📘 *Next Episode: Coordinate Geometry EP6 — Equation of a Straight Line* Learn about \(y=mx+c\) and how to find the equation of a straight line. #CoordinateGeometry #Gradient #Slope #GCSEMaths #HKDSE #ParallelLines #PerpendicularLines #MathExam #坐標幾何 #斜率 #梯度 #平行線 #垂直線 #中學數學 #數學教學 2026-10-21. 2026-Oct-21