Question 1083980

Function 1 is modeled by the equation: 
{{{y = 40 + 3x}}} where {{{x}}} is the number of days and {{{y}}} is the city's population or amount of people living in the city
This is a {{{linear}}} equation because all of the terms have exponent {{{1}}}.

Function 2 is a {{{non-linear}}} equation. Specifically, it is an example of an {{{exponential}}} equation because its variable {{{x}}} is found in the {{{exponent}}}.