Foundation November 2021 Paper 3 Q16
16 Triangle A and triangle B are drawn on the coordinate grid.
(a) Reflect triangle A in the line \(x = 0\). [2]
(b) Describe fully the single transformation that maps triangle A onto triangle B. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Triangle at \((-8, 6)\), \((-8, 2)\), \((0, 6)\) | 2 | B1 for reflection in \(x = k\) or in \(y = 0\) | Mark intention, condone freehand |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Enlargement \(\dfrac{1}{4}\) or 0.25 \((0, -6)\) | 3 | B1 for each element | Marks spoilt if extra transformations Condone omission of brackets Accept centre as a vector \(\begin{pmatrix} 0 \\ -6 \end{pmatrix}\) |