Higher November 2019 Paper 3 Q24
24 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 | |
| Scale factor \((\times)\ {-}\dfrac{1}{2}\) | B1 | oe |
| Centre (1, −1) | B1 |
Additional guidance
| Enlarge \((\times) -\dfrac{1}{2}\) (1, −1) | B1B1B1 |
| ‘Reduces’ or ‘gets smaller’ or ‘shrinks’ | 1st B0 |
| Do not accept \(\div \left(-\dfrac{1}{2}\right)\) for scale factor | 2nd B0 |
| Centre 1, −1 | 3rd B0 |
| Combined transformation given | B0B0B0 |