Depending on your engine. But +0.75 is not a "slight" advantage. It usually means clear advantage (for white in this case) and black would probably not be too happy with his position.
when is ti a slight advantage

ok I have Rybka,Chessmaster for PS2, and SOS 5.1 so what is considered a slight advantage for one of these engines.

Slight edge for those engines is .20-.40 (this is a subjective value).
That being said do not always trust the machine's evaluation even if it is Fritz or Rybka. There are some things that PCs still do not understand about some positions. So if you dissagree with an evaluation- go for it and reasearch the position a little deeper. Sometimes you will find that our silicon friends aren't as wise as they say.
Hello everyone I have a slight question for when using computer's for analysis. Is everything o a computer +0.75 only considered a slight edge.