what system of linear inequalities is represented by the graph?

first line:
y=0.5x-1

second/dotted line:
y=2x-4

your allowed values are below the first line and above the second, so the system is
I: y<=0.5x-1
II: y>=2x-4

your dotted line might also mean > instead of >=, but this depends on the notation used in class