Question

The population of a city increases by 4,000 people each year. In 2025 the population is projected to be 450,000 people,. What is the equation that gives the city's population p ( in thousands of people) x years after 2010?

Answer 1

The population by 4000 for 15 years, or 60,000

So, it must have been 450,000-60,000 = 390,000 in 2010

p(x) = 390 + 4x