2025 SST PRELIMS P1 Q8

2025 SST PRELIMS P1 Q8

Secondary 4
3 marks

Sketch the graph of \(y=-(2x-1)(x+3)\). Indicate clearly the coordinates of the turning point and where the graph crosses the axes.[3]

Solution:

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Answer:Intercepts \((-3,0)\), \((0.5,0)\), \((0,3)\); maximum \(\left(-\frac54,\frac{49}{8}\right)\).

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