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

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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) About Me  (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)
x-y+=+4
3-1+=+4
2+=+4 The point (3, 1) is not a solution to this equation.
Try (0, -4)
x-y+=+4
0-%28-4%29+=+4
4+=+4 The point (0, -4) is a solution.
Try (-4, 0)
x-y+=+4
-4-0+=+4
-4+=+4 The point (-4, 0) is not a solution.
See if you can do the last one yourself.
Try (-3, -7)
x-y+=+4 ??