What's the first curve? or ?
In either case, you will need to find the points of intersection. This may not be a particularly trivial task.
I'm not quite sure what "to the left of" means. Maybe a short quiz will help.
Is the point (0.2,4) in the shaded region?
Is the point (0.4,3) in the shaded region?
Is the point (0.6,2) in the shaded region?