18 STEPS
1. The first step is to open a Google Sheet and create a chart (to learn how to create this chart, go here: https://helpdesk.plcschools.org/index.php?pg=kb.page&id=389.) Now, click on your chart.
2. Click Options
3. Click Edit chart
4. Click Customize
5. Click Series
6. Scroll down and click trendline
7. My trend line is now in the chart, but I want to customize it. Click Line color.
8. Click green
9. I want my line to be thicker, so I will increase it's pixel size.
10. Click 8px
11. I also want it darker, so I will increase it's opacity to a higher percentage.
12. Click 80%
13. I also want to label my trend line. Click the drop down for "label".
14. Click Custom
15. Doubleclick Custom label
16. Type Custom label and Press Enter
17. Click Close
18. That's it. You're done. I now have a trend line in my chart that is clearly formatted and labelled.