How do you solve the system #x + y = 4# and #–x + y = 2# by graphing?
(Graph in explanation)
First, we need to set the equation so that
For the first equation
For the second equation
Now we can graph this. We graph both equations on the same graph because to solve by graphing, we have to find the point(s) where the two graphs intersect:
The red line represents the equation
The blue line represents the equation
As you can see, the equations intersect at the point
Therefore, the answer is
Hope this helps!