The line l l\,l passes through the points A(1,4)A(1, 4)A(1,4) and B(−2,13)B(-2, 13)B(−2,13).
Find an equation for l l\,l and the exact length of ABABAB.
260 exam-style questions on Edexcel A 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.