A legend.
legend
The title, legend ( or key) and axes labels all contribute.
"Legend" usually refers to a text description. This is often used in graphs; for example, if you have several lines in a line graph, to describe what each line represents.
the five graph is line graph,bar graph,pictograph,pie graph and coin graph
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 legend of a graph typically explains what each bar or line represents. The legend is usually located either above, below, or to the side of the graph. It uses colors, symbols, or patterns to match each element to its corresponding label.
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.