Problem-Solving and Data AnalysisEasy–MediumMeaning of the intercept in a rental model
Problem-Solving and Data Analysis practice question
A model gives the cost C, in dollars, of renting a hall for h hours as C = 40h + 150. What does the number 150 represent?
- A. The fixed charge, paid however short the rentalCorrect
- B. The cost of one hour
- C. The number of hours in a day
- D. The maximum charge
Answer: A. The fixed charge, paid however short the rental
150 is the cost at h = 0.
Why the other answers are wrong
- B. The cost of one hour
- One hour costs 40.
- C. The number of hours in a day
- Hours are the input, not 150.
- D. The maximum charge
- The charge keeps rising with hours.
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