Answer:
Model: y=0.25x+50
Explanation:
Let x represents cost per miles and y represents total cost.
If we pay $50.00 per day and 0.25 per mile
Per mile cost = $0.25
For x miles cost = 0.25x
y-intercept: (0,50)
Using above information the required equation,

Hence, The model y=0.25x+50 show the relationship between miles driven and the total cost for a rental car.