Final answer:
A yellow-pennant shape sign on the left side of the roadway indicates a no passing zone.
Step-by-step explanation:
A yellow-pennant shape sign on the left side of the roadway indicates a no passing zone. This sign is used to inform drivers that passing is not allowed in that specific area. It is usually placed before curves, intersections, and other areas where passing is dangerous. The yellow color and the pennant shape provide visual cues to drivers, alerting them to be cautious and follow the traffic rules.