## Exam-Style Question on Graphs## A mathematics exam-style question with a worked solution that can be revealed gradually |

Question id: 179. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is not allowed.

(a) Find the interval for which \(x^2 - 9x + 18 \le 0\)

(b) The point (-4, -4) is the turning point of the graph of \(y = x^2 + ax + b\), where a and b are integers. Find the values of a and b.

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If you need more practice factorising try the self-checking interactive exercises called Factorising Level 7.

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