The area under a speed-time graph represents the distance travelled. The object is accelerating at \(\frac{8}{4} = 2~m/s^2\). It travels \(\frac{1}{2} \times 4 \times 8 = 16~m\). Between 4 and 7 ...

Line graphs show how data changes over time or space. The x-axis shows time or distance. A line graph could be used to show the changes in a country's employment structure over time. This graph ...