Intermediate November 2019 Unit 1 Q12
12.
(a) Describe fully the single transformation that transforms triangle A onto triangle B. [2]
(b)
(i) Translate triangle A using the column vector \(\begin{pmatrix}5\\-6\end{pmatrix}\). [2]
(ii) Write down the column vector that will reverse the translation in part (i). [1]
| Scheme | Marks | Comments |
|---|---|---|
| Reflection in (the line) x = −2 | B2 | B1 for ‘reflection’ or ‘reflected’. B1 for sight of ‘x = −2’ or equivalent e.g. x + 2 =0 (written, not simply drawn). |
| Scheme | Marks | Comments |
|---|---|---|
| (i) Correct translation. | B2 | B1 for translation ‘5 right’. B1 for translation ‘6 down’. SC1 for 2 correct vertices. |
| (ii) \(\begin{pmatrix}-5\\6\end{pmatrix}\) | B1 | B0 for \(\begin{matrix}-5\\6\end{matrix}\) (missing brackets) OR (−5,6) B0 for \(\dfrac{-5}{6}\) with or without brackets. No FT from part (b)(i). |