7. In the year 2000, the total number of metric tons of copper produced in the world was 575,000. Each year since 2000, the total number of metric tons of copper produced has
• The initial value is
• The graph is increasing / decreasing by
%.
8. A city has a population of 80,000. Due to the economy, the population decreases by 3.5% per year. Which function can be used to find the population of the city after x years?
increased on average by about 4.85% over the amount of produced the previous year.
Which function models the total number of metric tons of copper produced in the year that
A
B
C
D
f(x) = .035(80000)*
f(x) = 80000(1 - 3.5)*
f(x) = 80000(965)*
f(x) = 80000(035)*
is x years since 2000?
A c(x) = 575,000x1.0485
B c(x) = 575,000x0.9515
C c(x) = 575,000(1.0485)*
D c(x) = 575,000(0.9515)*