| Exam Board | OCR MEI |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Year | 2012 |
| Session | January |
| Marks | 3 |
| Paper | Download PDF ↗ |
| Topic | Solving quadratics and applications |
| Type | Rearranging formula - variable appears multiple times |
| Difficulty | Moderate -0.5 This is a straightforward algebraic manipulation requiring collection of h terms, factorisation, and division - standard C1 technique with no conceptual difficulty. Slightly easier than average as it's a single-step rearrangement with clear structure, though the quadratic term prevents it from being trivial. |
| Spec | 1.02k Simplify rational expressions: factorising, cancelling, algebraic division |
6 Rearrange the following equation to make $h$ the subject.
$$4 h + 5 = 9 a - h a ^ { 2 }$$
\hfill \mbox{\textit{OCR MEI C1 2012 Q6 [3]}}