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Determine whether (-1, -8) is a solution for y=x-5.

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2 Answers

since you are given the point to test as (-1,-8) that means x = -1 and y = -8
So, you plug in this values unto your equation.  Plug in -1 for x and -8 for y
 
-8 = -1 - 5
 
but since it is NOT true that -8 = -6, the point (-1,-8) is NOT a solution for this equation.
Abby,
       An ordered pair is written (x.y) so in this case x = -1 and y = -8 So your equation is -8 =-1-5. If this is a true statement it is a solution. if it is not true then it is not a solution. does -8 = -1-5?
 
Hope this helps