Higher November 2023 Paper 5 Q5
5 Work out.
(a) \(\begin{pmatrix} 3 \\ -1 \end{pmatrix}\) + \(\begin{pmatrix} -2 \\ 4 \end{pmatrix}\) [1]
(b) \(\begin{pmatrix} 5 \\ 3 \end{pmatrix}\) − 2\(\begin{pmatrix} 1 \\ -4 \end{pmatrix}\) [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\begin{pmatrix} 1 \\ 3 \end{pmatrix}\) | 1 | Not for \(\left(\frac{1}{3}\right)\) | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\begin{pmatrix} 3 \\ 11 \end{pmatrix}\) | 2 | B1 for either 3 or 11 in correct position or for \(\left[\begin{pmatrix} 5 \\ 3 \end{pmatrix} +\right] \begin{pmatrix} -2 \\ 8 \end{pmatrix}\) or \(\begin{pmatrix} 5 \\ 3 \end{pmatrix} - \begin{pmatrix} 2 \\ -8 \end{pmatrix}\) | Not for \(\left(\frac{3}{11}\right)\) |