SOLUTION: graph of the system to determine the solution x+y=3, x+3y=-3 help and show. Thank You

Algebra ->  Coordinate-system -> SOLUTION: graph of the system to determine the solution x+y=3, x+3y=-3 help and show. Thank You      Log On


   

Question 549851: graph of the system to determine the solution x+y=3, x+3y=-3 help and show. Thank You
Answer by TutorDelphia(193) About Me  (Show Source):
You can put this solution on YOUR website!
It's best to get both equations in the form y=mx+b in order to graph them.
x+y=3
subtract x from both sides
y=-x+3

x+3y=-3
subtract x from both sides
3y=-x-3
Divide both sides by 3
y=-(1/3)x-1
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x%2B3%2C+-%281%2F3%29x-1%29+
We can see that they intersect at (-3,0)