Answer:
[tex]\large \boxed{\text{B) 374 mi/day}}[/tex]
Step-by-step explanation:
The average rate of change from one point to another is the slope of the straight line joining the two points.
[tex]\text{slope} = \dfrac{ y_{2} - y_{1}}{ x_{2} - x_{1}}[/tex]
From Day 1 to Day 3, your points are (1, 383) and (3, 1132).
[tex]\text{Slope} = \dfrac{1132 - 383 }{3 - 1} = \dfrac{749 }{2} = \textbf{374 mi/day}\\\\\text{The average rate of change from Day 1 to Day 3 was $\large \boxed{\textbf{374 mi/day}}$}[/tex]
The graph below shows the rate of change from Day 1 to Day 3 as a black line. It appears from the graph that Adam and his dad kept the same rate of change for the whole trip.
