1MA0 Higher June 2016 Paper 2 Q21
21 \[I = 5(v - u)\]
\(v = 14\) correct to 2 significant figures
\(u = 8.7\) correct to 2 significant figures
Work out the upper bound for the value of \(I\).
You must show your working. (3)
| Answer | Mark | Notes |
|---|---|---|
| 29.25 | 3 | B1 for one of 14.5, 13.5, 8.75, 8.65 M1 for \(\text{``}v_{\text{UB}}\text{''} - \text{``}u_{\text{LB}}\text{''}\) where \(14 \lt \text{``}v_{\text{UB}}\text{''} \leqslant 14.5\) and \(8.65 \leqslant \text{``}u_{\text{LB}}\text{''} \lt 8.7\) A1 for 29.25 from correct working |