I currently have a slope that looks like this:
$\frac{-5}{10}$
However, I need to bring it down to it's lowest terms, so I divided the numerator and denominator by -5 and I got:
$\frac{1}{-2}$
Although, if I divide it by 5 I get:
$\frac{-1}{2}$
Would it matter which answer I chose for the slope?
Also, I've been told that a slope should be in integers, is this true?
This is just a style question. There is no difference between having the negative sign in the top, bottom, or out in front of the whole thing and they can all be correct. Personally, I put the negative sign out in front of the entire fraction. As for whole numbers, as long as both the numerator and the denominator are integers, it should be fine.