Higher June 2019 Paper 4 Q8
8 Triangle A and triangle B are drawn on the coordinate grid.

(a) Describe fully the single transformation that maps triangle A onto triangle B. [3]
(b) Describe fully the single transformation that is equivalent to:
- a reflection in the line \(x = 3\), followed by
- a translation by \(\begin{pmatrix} 4 \\ 0 \end{pmatrix}\).
You may use the grid above to help you. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Rotation [centre] (−1, 0) 180° or enlargement [centre] (−1, 0) [sf] −1 | 1 1 1 | double transformation scores 0, 0, 0 must be coordinates, condone missing final bracket ignore direction | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Reflection | 1 | double transformation may only score B1 below | |
| \(x = 5\) | 2 | B1 for drawing line \(x = 5\) or for a correct mirror line of their final image, not \(x = 3\), drawn or written or for a correct final image or a correct follow through translation of the reflection of their object or the correct reflection of their object | |