2025 CHS PRELIMS P1 Q6

2025 CHS PRELIMS P1 Q6

Secondary 4
4 marks
  1. Express (-x^2-8x-19) in the form (-(x+p)^2+q).[2]
  2. Hence, sketch the graph of (y=-x^2-8x-19) on the axes below. Indicate clearly the turning point and axes intercept(s).[2]

Solution:

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Answer:(a) \(-(x+4)^2-3\) (b) maximum \((-4,-3)\), y-intercept \((0,-19)\)

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