SOLUTION: Decide whether the ordered pair (2,7) is a solution of the equation. x-y=-5

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Question 189776: Decide whether the ordered pair (2,7) is a solution of the equation.
x-y=-5

Answer by jojo14344(1513)   (Show Source): You can put this solution on YOUR website!


Given line Eqn ---> x-y=-5

Via Slope intercept Form, ;
--->
where


Let us see x-Intercept, let Fy=0:



let us plot:
---->

*The line passes thru (2,7), therefore it's a solution.

*One way to verify, substitute (2,7) to our given eqn:


, it satisfies the eqn.

Thank you
Jojo

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