we have that
the solution is the shaded area above the dashed line
so
Find out the equation of the dashed line
we need two points
we take
(0,-2) and (4,0)
Find out the slope
m=(0+2)/(4-0)
m=2/4
m=1/2
the equation of the dashed line is
y=(1/2)x-2
therefore
the inequality that represents the graph is
y> (1/2)x-2
see the attached figure below
