Higher November 2018 Paper 2 Q9
9 Martin truncates the number \(N\) to 1 digit.
The result is 7
Write down the error interval for \(N\). (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| \(7 \leqslant N \lt 8\) | M1 | for identifying the key numbers 7 and 8 |
| A1 | cao |
Additional guidance
Ignore any inequality symbols used at this stage
Accept 7.9 (recurring) for 8 as shown by 7.999 or 7.9… or recurring notation (or words)