How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #x + y = 4# and #–x + y = 2#?
The equations are consistent.
The point of intersection is
Both equations are in the same format. AS such and the fact that the coefficients of
By sight: Directly adding equations (1) and (2) gives:
So the graphs intersect at
To graph these write the equations as:
If this is for homework you will be required to produce a table of values for each equation. I would suggest 3 values each