Two artists record the number of paintings they sell each week over the course of six weeks. The graph below shows this information. Write down three things wrong with the graph.
Well, firstly, we can see the information for weeks one, two, four, five, and six. So the first thing that’s wrong is that the data for week three is missing. Also, you’ll notice that the axes are missing. We should have an 𝑥-axis and a 𝑦-axis. But not only that, we should label our axes. So a second point could be the axes and axis labels are missing.
And thirdly, we don’t know which line relates to which artist. Now I don’t have a great pen, so I’ve coloured one of them in orange. But a key would tell us which line relates to which artist, like this. So our third point could be there is no key to indicate which line relates to which artist.