SOLUTION: This is a work sheet from my daughter's teacher. Graph the linear system and tell how many solutions it has. If there is exactly one solution, estimate the solution and check it

Algebra ->  Linear-equations -> SOLUTION: This is a work sheet from my daughter's teacher. Graph the linear system and tell how many solutions it has. If there is exactly one solution, estimate the solution and check it      Log On


   

Question 171593: This is a work sheet from my daughter's teacher.
Graph the linear system and tell how many solutions it has. If there is exactly one solution, estimate the solution and check it algebratically.
1.)x+y=4
x-y=2

2.)y=3x
2y=6x

3.)y=1/2x+2
y=1/2x-2



Solve the system using any algebratic method.

4.)x+y=2
3x-2y=6

5.)y=3x
x+y=12

6.)5x-2y=30
x+2y=6


Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
It would be better if your daughter tries these herself.
She could then ask for help on only the ones she cannot
handle.
We learn one step at a time.
Cheers,
Stan H.