The line l1 l_1\,l1 has the equation 2x+3y+5=02x + 3y + 5 = 02x+3y+5=0 The line l2 l_2\,l2 passes through the coordinates (1,7)(1, 7)(1,7) and (5,1)(5, 1)(5,1).
Determine, giving full reasons for your answer, whether l1 l_1\,l1 and l2 l_2\,l2 are parallel, perpendicular or neither.
Practise Edexcel A Level Maths Straight Line Graphs with exam-style questions for A Level Maths. 21 questions 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, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
