2026 CSS P2 Q1

2026 CSS P2 Q1

Secondary 4
4 marks
  1. Find the range of values of \(h\) for which the graph \(y=x^2+(h+2)x+1\) lies entirely above the \(x\)-axis.[3]
  2. Explain what happens when \(h\) is a positive number.[1]

Solution:

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Answer:(a) \(-4<h<0\). (b) Two distinct \(x\)-intercepts.

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