June 2024 Paper 2 Q6
6 The function f is given by \(\quad \mathrm{f}(x) = 3x^2 + 2 \quad\) with domain \(\quad -1 \leqslant x \leqslant 4\)
Work out the range of the function. [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(2 \leqslant \mathrm{f}(x) \leqslant 50\) | B2 | B1 \(\ldots \leqslant \mathrm{f}(x) \leqslant 50\) or \(2 \leqslant \mathrm{f}(x) \leqslant \ldots\) |
Additional guidance
| \(\ldots\) may be incorrect or blank | |
| \(50 \leqslant \mathrm{f}(x) \leqslant 2\) | B0 |