step 1
Find the equation of the dashed line of teh graph
we have the points
(0,3) and (3,1)
Find the slope
m=(1-3)/(3-0)
m=-2/3
Find the equation of the line in slope intercept form
y=mx+b
we have
m=-2/3
b=3
so
y=-(2/3)x+3
The solution of the inequality is the shaded area above the dashed line
that means
the inequality is
y > -(2/3)x+3