| Exam Board | OCR MEI |
|---|---|
| Module | C3 (Core Mathematics 3) |
| Year | 2008 |
| Session | June |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Modulus function |
| Type | Solve |linear| < constant (pure inequality) |
| Difficulty | Easy -1.2 This is a straightforward application of the basic modulus inequality rule |ax + b| ≤ c ⟹ -c ≤ ax + b ≤ c, requiring only algebraic manipulation to reach -1 ≤ x ≤ 2. It's a standard textbook exercise testing recall of a single technique with minimal steps, making it easier than average. |
| Spec | 1.02l Modulus function: notation, relations, equations and inequalities |
1 Solve the inequality $| 2 x - 1 | \leqslant 3$.
\hfill \mbox{\textit{OCR MEI C3 2008 Q1 [4]}}