O-LevelMathematicsAlgebra and graphs4024/11 · Oct/Nov 2016 · Q226 Marks
The diagram is the speed-time graph of part of a car's journey. [Figure 22.1]
- (a)Find the speed when t = 8.[2]
- (b)Find the distance travelled by the car from t = 0 to t = 10.[2]
- (c)On the diagram below sketch the distance-time graph for t = 0 to t = 15. [Figure 22.2][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 2016). The mark or mark type is shown in brackets.
- [2*] (a) 10.4 or any equivalent
- M1 for (v-4)/8 = (8-4)/10 oe
- or B1 for 6.4 oe; or for 1.6 oe; seen
- [2*] (b) 80
- C1 for 140
- or M1 for 10 × (4 + 12)/2 oe
- [1 dep] (c) Curve, concave upwards, from (0, 0) to (10, their(b))
- independent
- [1 dep] (c) Straight line from (10, their(b)) to (15, 60 + their(b))
- independent
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