To Tell whether which is which.
For example let's say you have a red bar and blue bar, how are people going to know which is which? So that's the purpose of the key.
The graph key is to make sure everyone understands what things mean, like a map key
The main purpose of a line graph is to show changes and patterns in the changes
It's so you can tell what the different coloured bars represent. A bit pointless though if there is only one data set.
It is the legend or key.
because
The graph key is to make sure everyone understands what things mean, like a map key
a graph key is when one end of the graph goes into a nother graph and makes baby graphs.
a key on a graph is used to show you what each symbol means
A graph whose purpose is inexplicable!
The main purpose of a line graph is to show changes and patterns in the changes
Every graph must have a key. Keys are to show which bit of the graph represent which data and what values are shown by the location or size or colour of the graph.
Every graph must have a key. Keys are to show which bit of the graph represent which data and what values are shown by the location or size or colour of the graph.
its a guideline
A key can make it easier to interpret the data sets that each part of the graph represents, especially if there is no room in the graph area for labels.
You need a key so people can see what the picture your picture graph uses means.
It's so you can tell what the different coloured bars represent. A bit pointless though if there is only one data set.
It can be - depends on the purpose.