During the Years 1994 to 2007 Seat Belt Use Among

question 41

Multiple Choice

During the years 1994 to 2007 seat belt use among front seat passengers ages 16 to 24 has increased. A linear model for the percentage of these passengers who use a seat belt is where P is percentage with a seat belt and t is years since 2000. The years before 2000 have a negative value for t. What is the vertical intercept of the model and what does it mean in terms of the problem?

• A) . In the year 1994 seat belt use was 64.60.
• B) . In the year 2000 seat belt use was 64.60.
• C) 2.33. Every year seat belt use goes up 2.33%
• D) . In the year 2000 seat belt use was 64.60%.

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