1. The total car sales at Sandy's Car Dealership has a steady increase over the 10-year period from 1990 to 1999.
Which model relates the number of cars sold as a function of the number of years since 1990? How many cars will be sold in the year 2001, and what year will the total number of cars sold exceed 2000? (1 point)
f(x) = 51.89x + 1,137.5
1,708; during the year 2007
f(x) = 51.89x + 618.58
1,703; during the year 2008
f(x) = 58.9x + 1,113.8
1,762; during the year 2005
f(x) = 51.9x + 1,138
1,657; during the year 2006
2. Smallville's town council has records of the town's budget over a 10-year period.
Which model relates the budget as a function of the number of years since 1990? What does the model predict the town's budget will be in the year 2001, and what year does the model predict the town's budget will exceed $400,000? (1 point)
f(x) = 12.72x + 135.7
$402,800; during the year 2001
f(x) = 12.27x – 828.2
$411,100; during the year 2000
f(x) = 12.82x – 883.8
$411,000; during the year 2002
f(x) = 12.72x + 262.9
$402,820; during the year 2001
3. Rocky Ridge Observatory has records of comet sightings over a 10-year period.
Which model relates the number of comets sighted as a function of the number of years since 1990? How many comets will be sighted in the year 2001, and what year will comet sightings exceed 150? (1 point)
f(x) = 4.85x + 69.85
123; during the year 2007
f(x) = 4.95x – 376
124; during the year 2006
f(x) = 4.58x – 337
126; during the year 2006
f(x) = 4.85x + 21
123; during the year 2006
4. The world's total population is projected to grow throughout the first quarter-century of the new millenium.
Write a model that relates the population as a function of the number of years since 1980. (1 point)
f(x) =
Which model relates the number of cars sold as a function of the number of years since 1990? How many cars will be sold in the year 2001, and what year will the total number of cars sold exceed 2000? (1 point)
f(x) = 51.89x + 1,137.5
1,708; during the year 2007
f(x) = 51.89x + 618.58
1,703; during the year 2008
f(x) = 58.9x + 1,113.8
1,762; during the year 2005
f(x) = 51.9x + 1,138
1,657; during the year 2006
2. Smallville's town council has records of the town's budget over a 10-year period.
Which model relates the budget as a function of the number of years since 1990? What does the model predict the town's budget will be in the year 2001, and what year does the model predict the town's budget will exceed $400,000? (1 point)
f(x) = 12.72x + 135.7
$402,800; during the year 2001
f(x) = 12.27x – 828.2
$411,100; during the year 2000
f(x) = 12.82x – 883.8
$411,000; during the year 2002
f(x) = 12.72x + 262.9
$402,820; during the year 2001
3. Rocky Ridge Observatory has records of comet sightings over a 10-year period.
Which model relates the number of comets sighted as a function of the number of years since 1990? How many comets will be sighted in the year 2001, and what year will comet sightings exceed 150? (1 point)
f(x) = 4.85x + 69.85
123; during the year 2007
f(x) = 4.95x – 376
124; during the year 2006
f(x) = 4.58x – 337
126; during the year 2006
f(x) = 4.85x + 21
123; during the year 2006
4. The world's total population is projected to grow throughout the first quarter-century of the new millenium.
Write a model that relates the population as a function of the number of years since 1980. (1 point)
f(x) =