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Xrage · Answer 1 · 2016-11-15T22:12:17+0000

In order to check a solution, just plug in the coordinates. The 1 is x, and the -1 is the y. Just plug the numbers in and see if it works out:

y = 3x + 2
(-1) = 3(1) + 2
-1 = 5

-1 is NOT equal to 5, so (1, -1) is NOT a solution of y = 3x + 2.

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