1.3 Coordinate Geometry in the x-y Plane

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Question 60

The line $l_1\,$ has the equation $5 y - 10 = 2 x$ The point $P\,$ with $x\,$ coordinate 4 lies on $l_1$ . The line $l_2\,$ is perpendicular to $l_1\,$ and passes through the point $P$ .

Find an equation for $l_2\,$ in the form $a x + b y + c = 0$

[4]

The lines $l_1\,$ and $l_2\,$ cross the $x\,$ axis at the points $Q\,$ and $R\,$ respectively.

Calculate the area of the triangle $QP R$ .

[4]

1.3 Coordinate Geometry in the x-y Plane Questions

A Level
Maths
1.3 Coordinate Geometry in the x-y Plane

A Level
Maths OCR
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