Foundation November 2024 Paper 2 Q11
11 Triangle A is drawn on the grid below.
(a) Enlarge triangle A by scale factor 2 with centre of enlargement (0, 1).
Label the image B. [3]
Label the image B. [3]
(b) Complete the description of the single transformation that maps triangle B back to triangle A.
Enlargement by scale factor .................... with centre of enlargement ...................... [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Triangle drawn with vertices at (4, 1), (8, 1), (4, 7) | 3 | B2 for scale factor 2 but wrong centre or for correct centre but wrong scale factor or for 3 correct plots but no triangle drawn OR B1 for 2 vertices correct | Condone freehand and mark intention e.g. for a translation of the correct image e.g. proportionate triangle within pink overlay lines For B2 and B1 image must fit entirely on grid |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\dfrac{1}{2}\) oe and (0, 1) | 2 | B1 for each | Do not accept \(\div 2\) as oe Condone missing brackets for co-ordinate |