The model y = 135 + 25 x represent the cost of renting a car, where x is the number of days the car is rented.

a- What is the y-intercept for this model? Describe what this number represents in terms of the variables in the model.

b- What is the slope for this model? Describe does this number mean in terms of renting a car.

c- Evaluate the model for x=4. Describe what the ordered pair in terms of renting a car.

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