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Answer the following questions and box in your final answer>

1. The table below lists the cost of 2% milk based on data from the US Dept of Agriculture.

|Year |1998 |2000 |2002 |2004 |2006 |2008 |

|Average Cost for |2.57 |2.83 |2.93 |2.93 |3.10 |3.71 |

|one gallon ($) | | | | | | |

According to the line of best fit, what is the approximate increase in the average cost of a gallon of 2% milk per year?

2. The table below shows the median home prices in Florida.

|Year |1940 |1950 |1960 |1970 |1980 |1990 |2000 |

|Median Price ($) |23,100 |40,100 |58,100 |57,600 |89,300 |98,500 |105,500 |

Based on the line of best fit, what is the approximate increase in the median home price in Florida per year?

3. The table shows the number of hours you studied before your 8 math tests and your percent score on each test.

|Hours |8 |5 |

|Arkansas |2.8 |2.0 |

|Illinois |12.8 |8.1 |

|Kansas |2.8 |2.0 |

|Massachusetts |6.4 |4.7 |

|Pennsylvania |12.4 |8.5 |

|Texas |23.5 |14.9 |

In Michigan that year, the population was approximately 10 million. According to the line of best fit for the data above, approximately how many licensed drivers lived in Michigan that year?

5. The equation y = .09x + 2.53 represents the cost of a gallon of whole milk from 1998 to 2008. What does the number .09 represent?

a. cost of a gallon of milk in 1998

b. cost of a gallon of milk in 2008

c. yearly increase in cost

d. yearly decrease in cost

6. The table shows the number of hours students spend online the day before a test and the scores o the test.

Hours Online |1 |1 |1.5 |1.75 |2 |2 |3 |4 |4.5 |5 | |Test Score |98 |88 |92 |89 |75 |70 |78 |72 |57 |60 | |

The equation of the line of best fit for the data is y = -8.2x + 99. What does the y-intercept represent?

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