Use the y-axis scale ... graph, from 0 to 10 s. The slope of the green line changes over the 10 seconds and so to work out the average speed use: Average speed = \(\frac{distance}{time ...

The article includes several bar graphs. Figure 1 shows world population over time ... scale is he using?” I couldn’t imagine being able to notice 10,000 on a linear scale that included 7 ...