Higher November 2022 Paper 1 Q9
9 Work out all the integer values of \(x\) for which \(\quad 12 \leqslant 4x \lt 25\) [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(\dfrac{12}{4} \leqslant x\) or \(3 \leqslant x\) or \(x \lt \dfrac{25}{4}\) or \(x \lt 6.25\) or \(x \leqslant 6\) or \(x \lt 7\) | M1 | oe fully correct inequality is \(\dfrac{12}{4} \leqslant x \lt \dfrac{25}{4}\) or \(3 \leqslant x \lt 6.25\) |
| 3 4 5 6 with no extras | A1 | any order SC1 3 4 5 6 with one extra or any three of 3 4 5 6 with no extras or 12 16 20 24 |
Additional guidance
| Ignore incorrect evaluations of \(25 \div 4\) if correct answer is given eg \(3 \leqslant x \lt 6.5\) and answer 3 4 5 6 | M1A1 |
| \(3 \times 4\) and \(4 \times 4\) and \(5 \times 4\) and \(6 \times 4\) identified as only correct multiplications with no answer given implies M1 | M1A0 |