SOLUTION: Which of the ordered pairs (3, 1), (0, �4), (�4, 0), (�3, �7) are solutions for the equation x � y = 4?

Question 68341: Which of the ordered pairs
(3, 1), (0, �4), (�4, 0), (�3, �7)
are solutions for the equation x � y = 4?

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
The way to solve this problem is to substitute the x- and y-coordinates of the given points, one-by-one into the equation.
If the result is an equality, then you have a solution...if not, then you don't.
Try (3, 1)

The point (3, 1) is not a solution to this equation.
Try (0, -4)

The point (0, -4) is a solution.
Try (-4, 0)

The point (-4, 0) is not a solution.
See if you can do the last one yourself.
Try (-3, -7)
??
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