Answer:
C) 5
Step-by-step explanation:
We need to find the slope of the line given the two points on the graph.
Slope -> Rise/Run -> (y2-y1)/(x2-x1) -> (60-40)/(8-4) -> 20/4 -> 5
Therefore, the rate of change of the distance traveled with respect to time is 5 miles per hour.
