Câu 168: IIA-CIA-PART2: Certified Internal Auditor - Part 2 Conducting the Internal Audit Engagement

A recent survey indicated that residents of a small town take the train to a nearby city eight times per month, on average. The same survey showed that the number of train trips that a resident takes per month (y) is determined by the number of days per month that the resident works in the nearby city (x), according to the equation: y = 2 + 2x. A person who never works in the nearby city is expected to take the train:

1. A. Zero times per month.
2. B. Two times per month. — đáp án hiện tại
3. C. Four times per month.
4. D. Eight times per month.