Line A passes through the points (−3,−1)(-3, -1)(−3,−1) and (−1,9)(-1, 9)(−1,9). Line B passes through the points (−2,1)(-2, 1)(−2,1) and (−17,4)(-17, 4)(−17,4). Show that Line A and Line B are perpendicular.
204 exam-style questions on OCR GCSE Maths Parallel and Perpendicular Lines. Each one has a worked solution and a mark scheme showing where the marks go.