SOLUTION: Solve the system by graphing: 3x-y=1 3x-y=2 How do I do this?

Algebra.Com
Question 82797: Solve the system by graphing:
3x-y=1
3x-y=2
How do I do this?

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Solved by pluggable solver: Solve the System of Equations by Graphing



Start with the given system of equations:










In order to graph these equations, we need to solve for y for each equation.




So let's solve for y on the first equation


Start with the given equation



Subtract from both sides



Rearrange the equation



Divide both sides by



Break up the fraction



Reduce



Now lets graph (note: if you need help with graphing, check out this solver)



Graph of




So let's solve for y on the second equation


Start with the given equation



Subtract from both sides



Rearrange the equation



Divide both sides by



Break up the fraction



Reduce





Now lets add the graph of to our first plot to get:


Graph of (red) and (green)


From the graph, we can see that the two lines are parallel and will never intersect. So there are no solutions and the system is inconsistent.

RELATED QUESTIONS

How and what do I do?Please help me? Solve the system by graphing. 3x – y = 1 3x – y (answered by bucky)
how do I solve y = x + 1 y =-3x + 9 solve the linear system by... (answered by TimothyLamb)
solve each system by graphing! how do i do this? 3x*4y=13... (answered by haileytucki)
Solve the following system of linear inequalities by graphing. 3x – y < 2 x + y > 2... (answered by stanbon)
Solve the system by graphing. 3x - y = 1 3x - y = 2 I can't make this in to a... (answered by ilana)
How do I graph? I do not understand where or how to graph. Solve the system of equation... (answered by stanbon)
How do i solve the systems by graphing on this problem? y = 3x - 17 y = -5x +... (answered by dlh)
Solve the system of equations by graphing. Then classify the system as consistent or... (answered by jim_thompson5910)
Solve the system of equations by graphing. Then classify the system as consistent or... (answered by jim_thompson5910)