Charlotte-Mecklenburg Schools Unit 4 Lesson 3 Practice Problems O 1. The scatter plot shows the number of minutes people had to wait for service at a restaurant and the number of staff available at the time. A line that models the data is given by the equation y = - 1.62x+18, where y represents the wait time, and x represents the number of staff available. a. The slope of the line is -1.62. What does this mean in this situation? Is it realistic? wait time 13 12 11 10 987 65 4 3 21 Math 1. Unit 4. Lesson 3 Student 1 2 3 b. The y-intercept is (0, 18). What does this mean in this situation? Is it realistic? 4 5 6 7 8 9 staff

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