11.1.8: (a) Generate y_0,y_1,y_2,y_3, and y_4 from the difference equation.
(b) Graph these first few terms. (c) Solve the difference equation.

y_n = 0.5 y_(n-1) + 5, y_0 = 2

----------------


11.1.18 The population of a certain country is currently 70 million but is
declining at the rate of 1% each year due to an excess of deaths over births.
In addition, the country is losing one million people each year due to
emigration. Let y_n be the population after n years. Find a difference
equation satisfied by y_n


---------------

11.1.25 Ferdinand knows that he will need to replace his home office 
equipment someday. He deposits $800 into a savings account paying 4%
interest compounded annually. At the end of each year he deposits $250
into the account. Let y_n be the amount in the account after n years.

(a) Find a difference equation satisfied by y_n
(b) Solve the difference equation
(c) How much money will he have in the account after 7 years?

---------------


11.1.26 Anne takes out a $317 loan at 10% annual interest. She pays off
$100 at the end of each year for 4 years. Compute the balance on the
loan immediately after she makes the first payment. Then compute the
balance after the second payment.