SOLUTION: Solve the systems of equations by graphing.
X+y=4,
X+y=-4
Algebra.Com
Question 242818: Solve the systems of equations by graphing.
X+y=4,
X+y=-4
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Solve for y in each equation:
y=-x+4
y=-x-4
Are you allowed to use a graphing calculator? If so, there it is:
The lines are quite obviously PARALLEL, so there is NO SOLUTION. Sometimes this is written that the system of equations is INCONSISTENT!
Dr. Robert J. Rapalje, Retired
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