Distance-time graphs are used to determine velocity and also to track the distance moved.
The person has traveled 30 miles in 4 hours
The graph illustrates a distance-time graph.
From the graph, we have:
Distance = 30 miles, when Time = 4 hours
The above highlight means that:
The corresponding distance to 4 hours on the graph is 30 miles
Hence, the person traveled 30 miles in 4 hours
Read more about distance-time graph at:
https://brainly.com/question/20884635