| Exam Board | OCR MEI |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Marks | 3 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Curve Sketching |
| Type | Basic factored form sketching |
| Difficulty | Easy -1.8 This is a very straightforward curve sketching question requiring only recognition of a quadratic in the form y = a - x², identifying it as an inverted parabola with vertex at (0,9) and x-intercepts at ±3. It involves minimal calculation and is simpler than typical A-level questions, being appropriate for early C1 content. |
| Spec | 1.02n Sketch curves: simple equations including polynomials |
| Answer | Marks |
|---|---|
| B1 | Negative quadratic curve |
| B1 | Intercept \((0, 9)\) |
| B1 | Through \((3, 0)\) and \((-3, 0)\) |
Question 1:
B1 | Negative quadratic curve
B1 | Intercept $(0, 9)$
B1 | Through $(3, 0)$ and $(-3, 0)$
(Condone $(0, 9)$ seen eg in table)1 Sketch the graph of $y = 9 - x ^ { 2 }$.
\hfill \mbox{\textit{OCR MEI C1 Q1 [3]}}