| Exam Board | OCR MEI |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Year | 2009 |
| Session | June |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Topic | Completing the square and sketching |
| Type | Complete square then find vertex/turning point |
| Difficulty | Easy -1.2 This is a straightforward completing the square exercise with direct application to find a minimum point. It requires only standard algebraic manipulation and recognition that the vertex form immediately gives the minimum coordinates. This is routine C1 content with no problem-solving or novel insight required, making it easier than average. |
| Spec | 1.02e Complete the square: quadratic polynomials and turning points |
\begin{enumerate}[label=(\roman*)]
\item Express $x^2 + 6x + 5$ in the form $(x + a)^2 + b$. [3]
\item Write down the coordinates of the minimum point on the graph of $y = x^2 + 6x + 5$. [2]
\end{enumerate}
\hfill \mbox{\textit{OCR MEI C1 2009 Q9 [5]}}