Higher November 2023 Paper 4 Q7
7 Find all the possible integer values that satisfy the inequality \(-10 < 3x + 2 \leqslant 8\). [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(-3\quad -2\quad -1\quad 0\quad 1\quad 2\) | 3 | B2 for 5 correct and none incorrect or 6 correct and 1 incorrect OR | |
| M1 for \(-10 - 2 < 3x\) or better | e.g. \(\frac{-12}{3} < x\) or \(-4 < x\) | ||
| M1 for \(3x \leqslant 8 - 2\) or better | e.g. \(x \leqslant \frac{6}{3}\) or \(x \leqslant 2\) | ||
| If 0 scored SC1 for \(x = -4\) and \(x = 2\) | |||