How to add line in google sheets chart

- How to add horizontal line in google sheets chart
- How to add average line in google sheets chart
- How to add vertical line in google sheets chart
- How to add trend line to google sheets chart
- How to add a line to a bar chart in google sheets
- How to add line of best fit in google sheets chart
- How to add data to line chart in google sheets
- How to add line to scatter chart google sheets
- How to add another line to a chart in google sheets
- How to add a goal line to a chart in google sheets
- How to add a series to a line chart in google sheets
- How to add a line to a stacked bar chart in google sheets
- How to add an average line to a bar chart in google sheets