Question

The number of residents in a city is 57,000 people. The population is increasing each
year by 1.2%. Write an equation to model this situation.

Answer 1

y = 0.012x + 57,000

12% translates to 0.012. That number is in front of the x because it changes yearly.

The 57,000 is added afterwards (b) because it was there from the beginning