Extend Fit Line

Hey! I want to extend the line of a linear fit over my specified range for the fit. How do I do that?

I guess you should get the line equation and draw it over the plot using TF1

Hello, I am trying to do the same. Did you get some solution?

As suggested in the previous answer, do you know the equation of the line ?
Do you have a simple macro showing the problem you want to solve ?