O-LevelMathematicsVectors and transformations4024/12 · May/June 2021 · Q235 Marks
Triangle A and triangle B are drawn on the grid. [Figure 23.1]
- (a)Describe fully the single transformation that maps triangle A onto triangle B.[3]
- (b)Transformation P is represented by the matrix (1/2 0) (0 -1/2) P maps triangle A onto triangle C. On the grid, draw triangle C.[2]
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Mark scheme
Marking points from the official mark scheme (May/June 2021). The mark or mark type is shown in brackets.
- [3] (a) Rotation
- [3] (a) 90° clockwise oe
- [3] (a) (1,-1)
- [3] (a) B1 for each
- [2] (b) Triangle at (2, 0), (1, 0), (1, 2)
- [2] (b) B1 for two vertices correct or two correct pairs of coordinates soi
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