line of best fit on excel

[Hamoodii]

How do you guys put a line of best fit on a graph within excel on windows office 2007?

 

[csmager]

Add trendline, same as Office 97-2003.

Google came up with this as the top result: http://www.tech-recipes.com/rx/2097/excel_2007_how_to_add_trendline_chart

 

[Hamoodii]

oke thank you very much