Mathematics 0580 · IGCSE · Graphs in practical situations
Graphs in practical situations — practice question
Annette rides her bicycle for a distance of $70\text{ km}$ from Midville to Newtown.
After leaving Midville, she travels for $1$ hour $30$ minutes at a steady speed of $20\text{ km/h}$, then pauses for $30$ minutes.
She then completes the trip to Newtown at a steady speed of $16\text{ km/h}$.
A distance-time grid is given, with the vertical axis marked Distance (km) from $0$ to $80$ and the horizontal axis marked Time (h) from $0$ to $5$.
(a)[3]
On the grid, draw the distance-time graph for the journey.
(b)[3]
Calculate the average speed for the whole journey.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Straight line joining $(0,0)$ to $(1.5,30)$” …