Higher June 2023 Paper 3 Q22
22 Shape A and shape B are shown on the grid.
Describe the single transformation that maps shape A to shape B. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| Enlargement | B1 | accept Enlarge |
| (Scale factor) \(-\dfrac{1}{2}\) | B1 | oe |
| (Centre) (7, 4) | B1 | oe |
Additional guidance
| Do not accept reduces, gets smaller, shrinks or negative enlargement | |
| Do not accept \(\div {-\dfrac{1}{2}}\) or \(\div {-2}\) for scale factor | |
| Ignore missing brackets on 7, 4 | |
| Do not accept \(\begin{pmatrix}7\\4\end{pmatrix}\) for centre of enlargement, however this does not imply a combined transformation | |
| Enlarge, \(-\dfrac{1}{2}\), (7, 4) | B1B1B1 |
| Combined transformation | B0B0B0 |