SOLUTION: Can someone help me solve the system by graphing it for me? x - y = 5 x + y = 3 Thank you so much. Lyn

Algebra ->  Coordinate-system -> SOLUTION: Can someone help me solve the system by graphing it for me? x - y = 5 x + y = 3 Thank you so much. Lyn      Log On


   

Question 59498: Can someone help me solve the system by graphing it for me?
x - y = 5
x + y = 3
Thank you so much.
Lyn
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Hi Lyn,
E1) x - y = 5
E2) x + y = 3
:
For E1) let x=0 and solve for y:
0-y=5
-y=5
-1(-y)=-1(5)
y=-5 Plot (0,-5)
Now let y=0 and solve for x:
x-0=5
x=5 Plot (5,0)
Connect the points and you have this line:
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cx-5%29
For E2) let x=0 and solve for y:
0+y=3
y=3 Plot (0,3)
Now let y=0 and solve for x:
x+0=3
x=3 Plot (3,0)
Connect the points and you have a second line:
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cx-5%2C-x%2B3%29
They intersect at: (4,-1)
Happy Calculating, Lyn!!!