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Is the ordered our (-2,8) a solution to: y-9=3x

Sagot :

It is not a solution

1) To get to know that, we need to plug it in the equation and check whether it is true or false.

2) Picking point (-2,8) and plugging -2 into x and 8 into y, we get:

[tex]\begin{gathered} y-9=3x \\ (8)-9=3(-2) \\ -1=-6\:False \end{gathered}[/tex]

2) Hence, we can tell that (-2,8) is not a solution to that equation

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