The line l1 l_1\,l1 has equation 2y+4x+7=02y + 4x + 7 = 02y+4x+7=0
The line l2 l_2\,l2 has equation y=mx+4y = mx + 4y=mx+4, where m m\,m is a constant.
Given that l1 l_1\,l1 and l2 l_2\,l2 are perpendicular.
Find the value of mmm.
Find the coordinates of the point where l1 l_1\,l1 and l2 l_2\,l2 meet.
Practise Edexcel AS Level Maths Straight Line Graphs with exam-style questions for AS 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 AS Level Maths (8MA0) specification and written in Paper 1 and Paper 2 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.