4MA0 Higher June 2013 Paper 4 Q9
9
(a) Solve the inequalities \(-6 \leqslant 3x \lt 9\) (2)
(b) \(n\) is an integer.
Write down all the values of \(n\) which satisfy \(-6 \leqslant 3n \lt 9\) (2)
Write down all the values of \(n\) which satisfy \(-6 \leqslant 3n \lt 9\) (2)
| Scheme | Marks |
|---|---|
| \(-6/3 \leqslant x \lt 9/3\) | M1 |
| \(-2 \leqslant x \lt 3\) | A1 |
| (2) |
Notes
M1: M1 for \(-6/3 \leqslant x\) or \(x \lt 9/3\)
A1: SC B1 for \(-2 \lt x \lt 3\)
| Scheme | Marks |
|---|---|
| −2, −1 , 0, 1, 2 | B2 |
| (2) |
Notes
B2: B1 for five correct values and one wrong value or four correct values with no wrong value