SOLUTION: When is the rational expression 1/(s+y) undefined? x=? s=?

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Question 310649: When is the rational expression 1/(s+y) undefined? x=? s=?
Found 2 solutions by unlockmath, Fombitz:
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
It's undefined when both s and x are zero or when the two numbers come out to zero for example if s is 3 and x is -3.
(Hint: if zero is in the denominator it's undefined, however when zero is in the numerator the answer is zero. Use your calculator and punch in 0 divided by any number. What do you get? Now divide a number by zero. What do you get? See the "E" it means error as it is undefined)
Make sense?
RJ
www.math-unlock.com

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Undefined when s%2By=0 or s=-y, since division by zero is not defined.