Changing line color at certain point

[debbieg]

Hi,
I have a line graph. Two of the point values of the series are 50 and 75.
The line is red. I'd like to make the line green between 72 to 75.
Thanks,
Debbie

 

[Echo S]

You need a data point at 72. You don't have to give the point itself any
fill or line color, so it doesn't have to show, but you need it to be there
so you can select that segment of the line. Then click on the line, and
click again on the segment between 72 and 75 -- once it's selected, you can
format it with the different line color.