SOLUTION: One last question for the day. How would you solve the system by graphing x+y=3 and x+y=-1

Algebra.Com
Question 90362: One last question for the day. How would you solve the system by graphing
x+y=3 and x+y=-1

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 do you solve the system of equations by graphing. The question is x+y=7 and... (answered by Fombitz)
how dou you solve the linear system by graphing? y=-x+3... (answered by rfer)
QUESTION: SOLVE THE SYSTEM BY GRAPHING X+Y=3... (answered by Lacey020991)
How would I solve this system by graphing, and what would the coordinates be? 2x + y = 4 (answered by algebrapro18)
Solve the system by graphing, addition and substitution methods. x + y = 3, x + y = –1 (answered by funmath)
Solve the linear system by graphing. Check your solution. Y= -x+3 and y=... (answered by Fombitz)
How would solve this system by graphing? x + y = 3 x + y =... (answered by checkley71)
How would solve this system by graphing? x + y = 3 x + y =... (answered by checkley71)
QUESTION: SOLVE THE SYSTEM BY GRAPHING X-Y=5... (answered by funmath)