4MA0 Foundation June 2013 Paper 2R Q20
20
(i) Solve the inequalities \(\quad 3 \leqslant x + 4 \lt 7\)
(ii) \(n\) is an integer.
Write down all the values of \(n\) which satisfy \(\quad 3 \leqslant n + 4 \lt 7\)
Write down all the values of \(n\) which satisfy \(\quad 3 \leqslant n + 4 \lt 7\)
(4)
| Scheme | Marks |
|---|---|
| (i) \(-1 \leqslant x \lt 3\) | B2 |
| (ii) −1 0 1 2 | B2 |
| (4) |
Notes
B2: B1 or either \(-1 \leqslant x\) or for \(x \lt 3\) as a final answer
B2: B1 for 4 correct and 1 wrong or for 3 correct and 0 wrong