A date-and-cost line chart tracks a commodity's changing price over time. Economists use such ... As with all charts that record periodic changes, time, the independent variable must go on the ...

There might also be grid lines for the line chart. A line chart is used to show the change in information over time. The horizontal axis is usually a time scale such as minutes, hours ...

Graphs help us understand data and reach conclusions. Line graphs are used to show continuous changes over time. A line graph might be useful for showing the pattern of change in world population ...

The takeaway is to think about your data and whether the chart you are using makes sense for your data. Don’t blindly follow rules. Times series are not always best shown using line charts or ...