ABCD ABCD\,ABCD is a trapezium with point A(−2,5)A(-2, 5)A(−2,5), point B(4,2)B(4, 2)B(4,2) and point C(6,−4)C(6, -4)C(6,−4).
AB AB\,AB is parallel to DCDCDC
AB AB\,AB is perpendicular to ADADAD

Find the equation of CDCDCD
Find the coordinates of DDD.
21 exam-style questions on Edexcel AS Level Maths Straight Line Graphs, covering 5.1 y = mx + c, 5.2 Equations of Straight Lines, 5.3 Parallel and Perpendicular Lines, 5.4 Length and Area, and 5.5 Modelling with Straight Lines. Each one has a worked solution and a mark scheme showing where the marks go.