Answer:
Explanation:
first put the inequality into slope intercept form (y-mx+b)
x-3y</=18
-3y</=-x+18
y>/=1/3x-6 (you have to flip the sign since you are dividing by a negative number)
then graph it (i attached a picture)
to figure out what side to shade in you can substitute the point (0,0) in for x and y. if it is true you shade in the part of the graph that includes (0,0).
0>/=1/3(0)-6
0>/=-6