Question

How can you determine if a rational expression is undefined?

Answer 1

When the denominator is equal to zero.

Answer 2

\[{any\#\over0}=undefined\]

Answer 3

amistre64 how did you get that fraction to appear that way; I can't seem to figure it out

Answer 4

\[testing \frac{x}{y}\] - thanks mattfeury!

Answer 5

yeah, like that :)