O-LevelMathematicsAlgebra and graphs4024/12 · Oct/Nov 2017 · Q244 Marks
The diagram is the speed-time graph of part of a train's journey.
- (a)Calculate the speed when t = 5.[1]
- (b)Calculate the acceleration.[1]
- (c)Calculate the distance travelled from t = 40 to t = 60.[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 2017). The mark or mark type is shown in brackets.
- [1] 24(a) 21
- [1] 24(b) 18/20 oe
- [2] 24(c) 420
- M1 for a correct, complete, method to find the area. e.g. ½ × (30 + 12) ×(60 – 40); 12 × (60-40) + ½ × (60 – 40) × (30 – 12); (60-40)×30-½ × (60 – 40) × (30 – 12)
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