Show that line 5y=2x+155y = 2x + 155y=2x+15 is perpendicular to line 2y=−5x+182y = -5x + 182y=−5x+18
130 exam-style questions on Eduqas GCSE Maths Perpendicular Lines and the equation of a tangent. Each one has a worked solution and a mark scheme showing where the marks go.