O-LevelMathematicsVectors and transformations4024/11 · May/June 2021 · Q167 Marks
Triangles A, B and C are drawn on the grid. [Figure 16]
- (a)Describe fully the single transformation that maps triangle A onto triangle B.[2]
- (b)Describe fully the single transformation that maps triangle A onto triangle C.[3]
- (c)Triangle D is the image of triangle A after an enlargement, scale factor 2, with centre of enlargement (1, 2). Draw triangle 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 (May/June 2021). The mark or mark type is shown in brackets.
- [2] (a) Reflection and x = 1 oe
- B1 for reflection
- B1 for x = 1 oe
- [3] (b) Rotation and 90° clockwise oe and (0,1)
- B1 for rotation
- B1 for 90° clockwise oe
- B1 for (0,1)
- [2] (c) Triangle D drawn in correct position with vertices (1,2) (5,2) and (5,4)
- B1 for triangle D drawn with correct orientation but in wrong position
- B1 for triangle D drawn with vertices (1,2) (-3,2) and (-3,0)
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