SOLUTION: Can someone help me graph the following problem? I don't have the software and need to send it through the computer. I need to solve the system by graphing: x + y = 3

Algebra ->  Coordinate-system -> SOLUTION: Can someone help me graph the following problem? I don't have the software and need to send it through the computer. I need to solve the system by graphing: x + y = 3       Log On


   

Question 60193: Can someone help me graph the following problem? I don't have the software and need to send it through the computer.
I need to solve the system by graphing:

x + y = 3
x + y = -1
Thank you so much,
Sher
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Hi Sher,
I didn't see this one earlier.
Solve the system by graphing:

E1: x + y = 3
E2: x + y = -1
These are parallel lines that never intercect. This has no solution.
For E1:
Let x=0 and y=?
0+y=3
y=3 Plot (0,3)
Let y=0 and x=?
x+0=3
x=3 Plot (3,0)
Connect the points and you have this line:
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-x%2B3%29
For E2:
Let x=0 and y=?
0+y=-1
y=-1 Plot (0,-1)
Let y=0 and x=?
x+0=-1
x=-1 Plot (-1,0)
Connect the points and you have a second line that will never intersect the first because the are parallel:
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-x%2B3%2C-x-1%29
Happy Calculating, Sher!!!