| Exam Board | AQA |
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| Module | Paper 1 (Paper 1) |
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| Year | 2019 |
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| Session | June |
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| Topic | Straight Lines & Coordinate Geometry |
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4 The point \(A\) has coordinates \(( - 1 , a )\) and the point \(B\) has coordinates \(( 3 , b )\)
The line \(A B\) has equation \(5 x + 4 y = 17\)
Find the equation of the perpendicular bisector of the points \(A\) and \(B\).