Show that line 3y=2x−123y = 2x - 123y=2x−12 is perpendicular to line 2y=−3x+102y = -3x + 102y=−3x+10
130 exam-style questions on CCEA 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.