2026 IGCSE Additional Mathematics May/June 0606/23 Q7

2026 IGCSE Additional Mathematics May/June 0606/23 Q7

2 marks

Two of the graphs A, B, C and D have equations of the form \(y=(x-1)(x-p)(x-q)\) where \(p\) and \(q\) are constants such that \(q\ge p\) and \(q>1\).

Find the two correct graphs, giving the values of \(p\) and \(q\) for each.[2]

Solution:

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Answer:A: \(p=2,\ q=2\). C: \(p=-1,\ q=2\).

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