Plug the values (x,y) into the equation and check:
[tex](10,6) \\
6=10-4 \\
6=6 \\
true \\ \\
(1,5) \\
5=1-4 \\
5=-3 \\
not \ true \\ \\
(5,1) \\
1=5-4 \\
1=1 \\
true \\ \\
(10,4) \\
4=10-4 \\
4=6 \\
not \ true \\ \\
(10,5) \\
5=10-4 \\
5=6 \\
not \ true[/tex]
The ordered pairs that are solutions to the equation are (10,6) and (5,1).
The answer is B.