Answer:
0.25 dollars per mile
Explanation:
The slope of the graph represents the rate of change of the cost per mile, which is given by the coefficient of x in the equation of the line. In this case, the equation for the total cost of renting the truck in terms of the distance traveled (in miles) is:
Cost = 0.25x + 30
m = 0.25
So, the slope of this graph is 0.25 dollar per mile.