"Where do you live?"
Translation:Где ты живёшь?
They both mean "Where do you live", but "Где ты живёшь?" is used in informal situations, when you're talking to one person (someone younger or someone you know quite well). You'd say "Где вы живёте?" in a formal situation when talking to someone older/someone you don't know that well or when addressing a group of people.