| Exam Board | OCR |
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| Module | C1 (Core Mathematics 1) |
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| Year | 2007 |
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| Session | June |
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| Topic | Quadratic Functions |
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8
- Express \(x ^ { 2 } + 8 x + 15\) in the form \(( x + a ) ^ { 2 } - b\).
- Hence state the coordinates of the vertex of the curve \(y = x ^ { 2 } + 8 x + 15\).
- Solve the inequality \(x ^ { 2 } + 8 x + 15 > 0\).