The comparison lines (dotted) have completely arbitrary y-intercepts. You should only take the slope seriously.
That might be worth mentioning, as I wondered about the same. (I didn’t realize until now that all the slope curves start at the same point on the left hand side of the figure)
The comparison lines (dotted) have completely arbitrary y-intercepts. You should only take the slope seriously.
That might be worth mentioning, as I wondered about the same. (I didn’t realize until now that all the slope curves start at the same point on the left hand side of the figure)