5. The data below shows the population of a city, In millions of people, since 1950.
Write an equation for the line of best fit.
Year Population
1950 1.75
1960 1.68
1970
1.52
b) Estimate the population of the city in 2020.
1980
1.16
1990 1.04
2000 0.98
6. The table below shows the average price of a a) Write an equation for the line of best fit.
movie ticket at the theater.
Year Price
1990 $4.22
$4.35
$5.39
b) In what year will the average price of a movie
ticket reach $157
$6.41
2010
$7.89
2015 $8.43
7. The table below shows the number of people, in a) Write an equation for the line of best fit.
millions, who voted in U. S. Presidential Elections.
Year People
1980
86.5
1984 92.7
b) Estimate the number of voters in the 2020
1988 91.6
election
1992 104.4
1996
96.3
2000 122.3
8. The graph below shows Carter's weight each a) Write an equation for the line of best fit.
week since he started his diet.
1995
2000
2005
2164
212
Weight (lbs)
200
b) Estimate Carter's weight 15 weeks into his diet.
204
2004
Weeks