Chart and Data points
 

I am using Excel 2007. I keep stats for my son's football team. We would like
to chart the distance that each play in the series goes. The football field
starts on the "Zero" yard line and then goes to the 30 yard line(MID-FIELD),
and then start back down towards the "Zero" yard line on the other end. We
record the data in a spread sheet with columns for the yard line and then
another for the distance. Example below,

Yard Line Distance
25 yard line +5 yards
30 yard line -3 yards
27 yard line +4 yards
29 yard line +2 yards (This would be on opponents 29 yard line)

What type of chart could I use to accomplish this. How would I show the if
the play series started on our own or the oppents yard line?

Thanks