The table lists fossil fuel production as a percentage of total energy production for selected years. A linear regression model for this data is (A) Draw a scatter plot of the data and a graph of the model on the same axes. O A. OB. y= - 0.22x +97.2 where x represents years after 1960 and y represents the corresponding percentage of oil imports. 100 100- Fossil Fuel Production Year Production (%) 60 C Years after 1960 1960 96 1970 1980 95 Years after 1960 94 Oc. 1990 93 2000 86 Q Q 100- 100 + 07 60 Years after 1960 Years after 1960 (B) Interpret the slope of the model. The rate of change of the percentage of oil imports with respect to time is per year. 97.2% -0.002% -441.8% -0.22%

The table lists fossil fuel production as a percentage of total energy production for selected years. A linear regression model for this data is (A) Draw a scatter plot of the data and a graph of the model on the same axes. O A. OB. y= - 0.22x +97.2 where x represents years after 1960 and y represents the corresponding percentage of oil imports. 100 100- Fossil Fuel Production Year Production (%) 60 C Years after 1960 1960 96 1970 1980 95 Years after 1960 94 Oc. 1990 93 2000 86 Q Q 100- 100 + 07 60 Years after 1960 Years after 1960 (B) Interpret the slope of the model. The rate of change of the percentage of oil imports with respect to time is per year. 97.2% -0.002% -441.8% -0.22%

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.FOM: Focus On Modeling: Fitting Lines To Data

Problem 12P: Demand for Candy Bars In this problem you will determine a linear demand equation that describes the...

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Demand for Candy Bars In this problem you will determine a linear demand equation that describes the demand for candy bars in your class. Survey your classmates to determine what price they would be willing to pay for a candy bar. Your survey form might look like the sample to the left. a Make a table of the number of respondents who answered yes at each price level. b Make a scatter plot of your data. c Find and graph the regression line y=mp+b, which gives the number of respondents y who would buy a candy bar if the price were p cents. This is the demand equation. Why is the slope m negative? d What is the p-intercept of the demand equation? What does this intercept tell you about pricing candy bars? Would you buy a candy bar from the vending machine in the hallway if the price is as indicated. Price Yes or No 50 75 1.00 1.25 1.50 1.75 2.00
Does Table 1 represent a linear function? If so, finda linear equation that models the data.
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