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) About Me  (Show Source):
You can put this solution on YOUR website!


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

Via Slope intercept Form, y=mx%2Bb;
x-y=-5 ---> x%2B5=y
wheresystem%28Slope=m=1%2CyIntercept=5%29


Let us see x-Intercept, let Fy=0:
x%2B5=0
red%28x=-5%29

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:
x-y=-5
2-7=-5
-5=-5, it satisfies the eqn.

Thank you
Jojo