SOLUTION: Solve the system by graphing. x � 2y = 8 x + y = �1

Question 117211: Solve the system by graphing.
x � 2y = 8
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 intersect at the point (,) (note: you might have to adjust the window to see the intersection)

RELATED QUESTIONS
Solve the system by graphing. x � 2y = 8 x + y = �1 REALLY NEED HELP... (answered by jim_thompson5910,checkley71)

Solve the system by graphing. x-2y=8... (answered by Edwin McCravy)

Solve the system by graphing. x � 2y = 8 x + y = -1 (answered by daniellagirl89)

solve the system by graphing. x - 2y = 8 and x + y =... (answered by checkley75)

Solve the system by graphing. x � 2y = 8 x + y = �1 (answered by uma)

Solve the system by graphing. x � 2y = 8 x + y = �1 (answered by stanbon)

Solve the system by graphing. x � 2y = 8 x + y = �1 (answered by malakumar_kos@yahoo.com)

Solve the system by graphing. x � 2y = 8 x + y = �1 (answered by mathispowerful)

Solve the system by graphing. x � 2y = 8 x + y = �1 (answered by jim_thompson5910)

Solve the system by graphing. x � 2y = 8 x + y = �1 (answered by MathLover1,solver91311)