Question 6.52

17. A 21-year-old college student drinks heavily at a party until his BAC is 0.15 g/dl—almost twice the legal driving limit of 0.08. He now stops drinking, and each hour his BAC falls by 0.015 g/dl.

Algebra Review Appendix

Using Formulas

  1. What is a regression-line equation that would predict his BAC from the number of hours after he stopped drinking?
  2. In how many hours would the student be able to drive legally?
  3. In how many hours would no alcohol be present in his body?

17.

(a) predicted number of hours after drinking stopped

(b)

(c) 10