Higher June 2025 Paper 1 Q11
11
(a) Write down the translation vector that maps shape A to shape B. [1 mark]
(b) Describe fully a rotation that maps A to B. [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(\begin{pmatrix} 6 \\ -2 \end{pmatrix}\) | B1 | condone \(\begin{pmatrix} +6 \\ -2 \end{pmatrix}\) or written as a fraction |
| Answer | Mark | Comments |
|---|---|---|
| Alternative method 1: rotation 180° | ||
| \(180^\circ\) or \(\dfrac{1}{2}\) turn and (0, 3) | B2 | ignore clockwise or anticlockwise B1 \(180^\circ\) or \(\dfrac{1}{2}\) turn or (0, 3) with incorrect rotation |
| Alternative method 2: rotation 90° clockwise | ||
| \(90^\circ\) clockwise or \(270^\circ\) anticlockwise or \(\dfrac{1}{4}\) turn clockwise or \(\dfrac{3}{4}\) turn anticlockwise and (−1, 0) | B2 | B1 \(90^\circ\) clockwise or \(270^\circ\) anticlockwise or \(\dfrac{1}{4}\) turn clockwise or \(\dfrac{3}{4}\) turn anticlockwise or (−1, 0) with incorrect rotation |
| Alternative method 3: rotation 90° anticlockwise | ||
| \(90^\circ\) anticlockwise or \(270^\circ\) clockwise or \(\dfrac{1}{4}\) turn anticlockwise or \(\dfrac{3}{4}\) turn clockwise and (1, 6) | B2 | B1 \(90^\circ\) anticlockwise or \(270^\circ\) clockwise or \(\dfrac{1}{4}\) turn anticlockwise or \(\dfrac{3}{4}\) turn clockwise or (1, 6) with incorrect rotation |
Additional guidance
| Accept counterclockwise for anticlockwise | |
| For the centre of rotation, condone missing brackets on coordinates, but not written as a vector | |
| Other or compound transformation stated or implied eg ‘about the line’ or ‘scale factor’ or ‘moved by \(\begin{pmatrix} 0 \\ 3 \end{pmatrix}\)’ | B0 |