1. When Kristin works 8 hours, she earns \$60. When she works 20 hours, she earns \$150. Write a linear equation that describes her earnings. Assume that the changes increase linearly. A. B. C. D. Hint 2. Find an equation of the line that passes through (0, -6) and (5, 3). A. B. C. D. Hint 3. Which equation describes the line that contains the points (-1, -8) and (-9, -21)? A. B. C. D. Hint 4. A rental car company charges \$75 for a 3-day rental and \$155 for a 7-day rental. Write an equation to find the amount that the rental car company will charge for any number of days. A. y = 80x – 165 B. y = 80x C. y = 20x D. y = 20x + 15 Hint 5. A phone company charges for service as follows: they charge a certain amount for a visit, and then they charge a certain amount per hour after that. If a three-hour service visit costs \$220, and a job that takes an hour and a half costs \$145, how much is the cost of a visit before the amount of time spent is factored in? A. \$217 B. \$25 C. \$70 D. \$50 Hint