| Exam Board | OCR |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Marks | 3 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Indices and Surds |
| Type | Solve exponential equations |
| Difficulty | Easy -1.2 This is a straightforward exponential equation requiring only basic index manipulation (converting both sides to the same base: 2^{2(y+3)} = 2^3, then equating powers). It's simpler than average A-level questions as it involves a single technique with no multi-step problem-solving or conceptual depth. |
| Spec | 1.06g Equations with exponentials: solve a^x = b |
\begin{enumerate}
\item Find the value of $y$ such that
\end{enumerate}
$$4 ^ { y + 3 } = 8$$
\hfill \mbox{\textit{OCR C1 Q1 [3]}}