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# Your group will develop four different population scenarios for a town.

MTH133
Unit 4 Group Project - A

Name:

Your group will develop four different population scenarios for a town. As a group, you will decide on the name of the town and the initial population. You will graph the function for each population scenario and use your model to make some decisions about the population.

1) 1) Decide on a name of a rural town. Name of town: Home Town USA
2) Decide on an initial population, , of the town in the year 2010. Initial population will be 4500. Use this value of for each of the scenarios. P0 = ___________
3) You will investigate four different scenarios of population growth or decline in this town.

? Linear growth
? Growth modeled by a quadratic equation
? Growth modeled by a radical equation
? Population decline modeled by a rational equation

I. Linear Growth:
Suppose that the amount that your town's population grows each year is fixed (or constant).

Choose the amount of population growth each year = _______
(Hint: Choose a whole number for your growth rate, rather than a percent.)

a) Fill in the following chart:

Year (t) Population (P)
t = 0
(2010) ______

t = 1
(2011)
t = 2
(2012)
t = 3
(2013)
t = 6
(2016)

b) Find a linear equation in the form P = mt + b (y = mx + b), which gives the population, P, t years from 2010.

c) Use your equation in part b to approximate the population in the year 2030.

d) Use your equation in part b to approximate how many years it will take the population to reach 7000.