A plumber has a set fee for a house call and charges by the hour for repairs. The total cost of her services can be modeled by y = 125t + 95. Which statements about this function are true?
I. The house call costs $95
II. The plumber charges $125 per hour.
III. The number of hours the job takes is represented by t.
I, II, and III
II and III, only
I and III, only
I and II, only
II and III, only
Explanation:
- Statement I is false because the house call costs $95, not the fee for a house call.
- Statement II is true, as the plumber charges $125 per hour for repairs.
- Statement III is true, as the number of hours the job takes is represented by t in the function y = 125t + 95.