O-LevelMathematicsAlgebra and graphs4024/12 · Oct/Nov 2020 · Q185 Marks
The diagram is the distance-time graph of Safira's journey from home to a shop and back again. She leaves home at 08 15 and returns at 08 50.
- (a)How many minutes does she stay in the shop?[1]
- (b)(i)On the grid, draw the graph of his journey to the shop.[1]
- (b)(ii)How far is he from the shop when he meets Safira?[1]
- (c)Calculate the speed Safira walks to the shop. Give your answer in km/h.[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 2020). The mark or mark type is shown in brackets.
- [1] 18(a) 5
- [1] 18(b)(i) line from (08 30, 0) to (08 45, 1200)
- [1] 18(b)(ii) 400
- FT their(b)(i)
- [2] 18(c) 4.8 or 4 4/5 or 24/5
- M1 for figs12 / 1 or figs12 / (1/4) oe
- or figs12 / 15 [x60] oe
- or figs12 / (15/60) [x60] oe or figs12 / 900
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