Final answer:
If there are two yellow lines dividing traffic and the one closest to you is broken, you may cross it to pass vehicles ahead if it is safe. Broken yellow lines indicate that passing is permitted when clear and conditions are safe.
Step-by-step explanation:
If there are two yellow lines dividing lanes of traffic, and the line closest to your lane is broken, you may cross over it to pass vehicles ahead, if it is safe to do so. This is because a broken yellow line indicates that passing on the left is allowed when the way ahead is clear and it is safe to pass. This rule is part of basic road safety and traffic regulations that drivers should be familiar with to maintain safety on the roads.
The condition of the line on the other side does not impact the legality of crossing the broken line on your side of the road; however, safety is paramount. You should always ensure no oncoming traffic would be endangered by your passing maneuver and that you have plenty of space and time to pass safely and return to your lane. Situational awareness is crucial when deciding to pass, as well as adherence to the posted speed limits and awareness of other road conditions and regulations.