The line l1 l_1\,l1 has the equation 5y−10=2x5y - 10 = 2x5y−10=2x The point P P\,P with x x\,x coordinate 4 lies on l1l_1l1. The line l2 l_2\,l2 is perpendicular to l1 l_1\,l1 and passes through the point PPP.
Find an equation for l2 l_2\,l2 in the form ax+by+c=0ax + by + c = 0ax+by+c=0
The lines l1 l_1\,l1 and l2 l_2\,l2 cross the x x\,x axis at the points Q Q\,Q and R R\,R respectively.
Calculate the area of the triangle QPRQPRQPR.
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.