SOLUTION: Solve by graphing. Indicate whether each system is independent, dependent, or inconsistent. y=3x-4 y=-2x+1

Algebra ->  Graphs -> SOLUTION: Solve by graphing. Indicate whether each system is independent, dependent, or inconsistent. y=3x-4 y=-2x+1      Log On


   

Question 193967: Solve by graphing. Indicate whether each system is
independent, dependent, or inconsistent.
y=3x-4
y=-2x+1
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C3x-4%2C-2x%2B1%29
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by the graph one can see that the solution is (1,-1)
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plugging this value into each equation verifies this solution
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systems with one solution are consistent and independent systems
:
if your looking for how to graph......simply choose a value for x and solve for y..
example y=3x-4 for x=1 y=3(1)-4=-1.
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you only need 2 points plotted to draw the line...but a 3rd point is good for making sure you havent made a mistake