Mathematics 4024 · O Level · Graphs in practical situations
Graphs in practical situations — practice question
This diagram shows Safira’s distance-time graph for her trip from home to a shop and then back home again. She sets off at $08\,15$ and gets back at $08\,50$.
(a)[1]
For how long does she remain in the shop?
(b(i))[1]
At $08\,30$, her brother leaves home and heads to the shop. He walks at the same speed as Safira. On the grid, draw the graph of his journey to the shop.
(b(ii))[1]
How far away from the shop is he when he meets Safira?
(c)[2]
Calculate the speed Safira walks to the shop. Give your answer in $\text{km}\,\text{h}^{-1}$.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is $5\text{ minutes}$.” …