The line L L\,L has equation y=5−2xy = 5 - 2xy=5−2x.
Show that the point P(3,−1)P(3, -1)P(3,−1) lies on LLL.
Find an equation of the line perpendicular to LLL, which passes through PPP. Give your answer in the form ax+by+c=0ax + by + c = 0ax+by+c=0, where aaa, b b\,b and c c\,c are integers.
Practise Edexcel A Level Old Maths Coordinate Geometry with exam-style questions for A Level Old Maths. 6 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) 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.