Final answer:
Texas route markers provide the direction to your destination, helping with orientation and navigational displacement vectors, but they do not indicate speed limits or rest area locations.
Step-by-step explanation:
Texas route markers are used to tell you the direction to your destination. They help drivers navigate by indicating the route number and sometimes also provide information about the distance to a particular location. These markers do not inform you about the speed limit or the location of rest areas. Understanding route markers is crucial for navigation as they help with orientation and ensure that you are traveling towards the correct destination.
The direction is an essential component in displacement vectors, as it combines with distance to indicate your displacement from one point to another. This concept is similar to when you provide both distance and direction to a friend to locate a specific place.