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

Question 45019: Which of the ordered pairs (3,1), (0,-4), (-4,0), (-3,-7) are solutions for the equation x-y=4?
Answer by adamchapman(301) (Show Source): You can put this solution on YOUR website!
Rearrange to give the equation of a line on the form "y=mx+c":

Now plot this line and you should notice that only 2 sets of the coordinates given is on that line:

Thhose coordinates are:
(0, -4) and (-3, -7)
I hope this helps.
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk
Adam

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