SOLUTION: I have a question about "graph the system of inequalities." X+3y<=9 3x+y<=9 X>=0 y>=0

Question 617302: I have a question about "graph the system of inequalities."
X+3y<=9
3x+y<=9
X>=0
y>=0
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Look at and first
This just says that both x and y are always
positive or zero. This only happens in the
1st quadrant.
Now look at the other equations

and

--------------
The solution is the area under both lines,
and confined to the 1st quadrant
Any point above either line doesn't work
Here's the plot:

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