1MA0 Higher March 2013 Paper 2 Q12
12 \(-3 \lt n \leqslant 1\)
\(n\) is an integer.
(a) Write down all the possible values of \(n\). (2)
(b) Solve the inequality \(3p - 7 \gt 11\) (2)
| Answer | Mark | Notes |
|---|---|---|
| \(-2\), \(-1\), 0, 1 | 2 | B2 for all 4 correct values; ignore repeats, any order (B1 for 3 correct (and no incorrect values) eg. \(-2\), \(-1\), 0 or one additional value eg. \(-3\), \(-2\), \(-1\), 0, 1) |
| Answer | Mark | Notes |
|---|---|---|
| \(p \gt 6\) | 2 | M1 for clear intention to add 7 to both sides or \(3p \gt 11 + 7\) or clear intention to divide all 3 terms by 3 as a first step or \(3p \gt 18\) or \(3p = 18\) or \(3p \lt 18\) or \(\frac{18}{3}\) A1 for \(p \gt 6\) as final answer NB: (\(p =\)) 6 on the answer line scores M1 A0 |