line

Points joined in order along an axis that has an order to it, almost always time. The line's slope is the rate of change, so a steep stretch, a flat stretch, and a turn all read as facts about speed rather than about level. Joining points only means something when the gap between them is real, which is why a line across unordered categories lies.

Points joined in order along an axis that has an order to it, almost always time. The line's slope is the rate of change, so a steep stretch, a flat stretch, and a turn all read as facts about speed rather than about level. Joining points only means something when the gap between them is real, which is why a line across unordered categories lies.

Example

Best when the numbers are a series and you want the shape of the change, not each value on its own.