Which of the following choices is the rule for the sequence { 2, 1, 0, -1 ... }? Use the variable p to represent the position, and the variable v to represent the value.

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.