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Straight Line Graphs

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Question 15

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.

a.

Find the value of mmm.

[2]
b.

Find the coordinates of the point where l1 l_1\,l1​ and l2 l_2\,l2​ meet.

[3]

Straight Line Graphs Questions

  1. A Level
  2. /Maths
  3. /Straight Line Graphs

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.

Question bank