O-LevelMathematicsVectors and transformations4024/11 · Oct/Nov 2017 · Q244 Marks
In the diagram, ABC and AFE are straight lines. AB = 6a and BF = 2b. [Figure 24]
- (a)Express AF in terms of a and b.[1]
- (b)(i)AE = 9a + kb. Find k.[1]
- (b)(ii)(a)ED is parallel to BC, CD is parallel to BF and BC = AB. Find, in terms of a and/or b, CD,[1]
- (b)(ii)(b)DE.[1]
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 2017). The mark or mark type is shown in brackets.
- [1] 6a + 2b oe
- [1] 3
- [1] 3b; or FT kb
- [1] -3a
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