O-LevelMathematicsVectors and transformations4024/22 · Oct/Nov 2019 · Q26 Marks
Shapes A, B and C are drawn on the grid.
- (a)Shape A is mapped onto shape B by a reflection. Write down the equation of the line of reflection.[1]
- (b)Describe fully the single transformation that maps shape A onto shape C.[3]
- (c)Transformation T is represented by the matrix (-1 0 / 0 -1). T maps shape A onto shape D. Draw and label shape D.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2019). The mark or mark type is shown in brackets.
- [1] y = -1 oe
- [3] Enlargement
- [3] Scale factor -3
- [3] Centre (-3, 2)
- [3] B1 for each
- [2] Correct transformation, vertices (5, −1), (6, -1), (6, -3), (5, -2)
- [2] B1 for three vertices correct or three correct pairs of coordinates soi
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