What does a solid yellow line painted on your side of a highway center line mean?

Answer 1

"they usally show you where you are on the road so you can tell your not off of it im just throwing out a guess! LOLZ!!! "

It actually means that you are in a no-passing area. You may only pass the car in front of you if the lines are dashes, not solid.

This typically happens on a two-lane road: one lane going in each direction. The dashed line tells you that you may pass if it is safe to do so. A solid line tells you that you cannot pass here....and in fact, would be issued a ticket if you try!

The traffic coming the other way may have a dashed line...and yours may be solid. This tends to happen as you are approaching a curve in the road that the opposing traffic has just driven through. They are now free to pass each other, but you are not.