4MA0 Higher June 2011 Paper 4 Q12
12
(i) Solve the inequality \(2x + 13 \geqslant 6\)
(ii) \(n\) is a negative integer.
Write down all the values of \(n\) which satisfy \(2n + 13 \geqslant 6\)
Write down all the values of \(n\) which satisfy \(2n + 13 \geqslant 6\)
(4)
| Scheme | Marks |
|---|---|
| (i) \(2x \geqslant 6 - 13\) oe | M1 |
| \(x \geqslant -3.5\) oe | A1 |
| (ii) −3, −2, −1 | B2 |
| (Total 4 marks) |
Notes
M1: Condone \(2x \gt 6 - 13\) oe
A1: mark response on answer line (do not isw)
correct answer with no working = M1A1
B2: any order B1 for −3, −2, −1, 0
Apart from questions 5b, 8, 15d, 20b, 21b, 23, 24b (where the mark scheme states otherwise) the correct answer, unless clearly obtained by an incorrect method, should be taken to imply correct working.