The water treatment plant in a city was found to be contaminated. The city's population was 500,000 in 2010 and is decreasing by 5% each year
after.
A.
Write a function f which models the population of the city t years after 2010.
b.
What was the population of the city in 2017?
c.
What will the population of the city be in 2030?
d.
In the year 2050, will the population have dropped below 100,000? Show how you arrived
at your answer.