Question 71028: Solve the system by graphing.
3x – y = 1
3x – y = 2
thanks
Found 2 solutions by checkley75, Alg_Whiz_Kid:
Answer by checkley75(3666)   (Show Source):
You can put this solution on YOUR website! 3x-y=1
-y=-3x=1
y=3x-1
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3x-y=2
-y=-3x+2
y=3x-2
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 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = 3x -1 and y = 3x -2).
Answer by Alg_Whiz_Kid(6) (Show Source):
You can put this solution on YOUR website! 3x – y = 1
3x – y = 2
Okay, here's how you do it. I used the slope formula, y = mx + b. First you need to get y by itself, that way you can graph. So for the first one, 3x - y = 1, you're going to move the x over to the right, making it -y = -3x + 1. You need the y to be positve, so divide by a negative, or change the signs of everything. Now you have y = 3x - 1. The y intercept is -1 so put a point at (0,-1). Then you can use a T-Table or the slope. I use the slope because it's easier, so here is how you can do it with the slope:
Change the 3 to 3/1, that way you know the rise and the run, so from the point (0,-1), go up 3 and right 1, and then do it again and make your line!
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