Line graph
The minimum requirement are data and a key (or legend). No axes are required if the graph is a pictogram.
legend
By looking at the dots reaching the positive end of the graph and referring to the legend(if applicable)
Legend
Line graph
A legend is important because it tells about the scale of the bar graph and it also explains the colours in the graph. it becomes very easy to make or understand the bar graph
a legend
It is the legend or key.
A legend.
legend
The minimum requirement are data and a key (or legend). No axes are required if the graph is a pictogram.
a key or legend.
legend
legend
The legend.
legend