Given that nothing else is borrowed in the near future, the length a government to completely eliminate its stock of debt will be ent how much more annual repayments exceed the annual interest er nterest expense portion of the debt is a function of the present st s given by i(y) = y – y? The amount of money that the government repays to reduce its d assumed to be a fraction, a, of the present stock of debt. Repayme end of each financial year. Soluo for thn procont cto nction oft

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter2: Functions
Section: Chapter Questions
Problem 30P: In this problem you are asked to find a function that models in real life situation and then use the...
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(b) Given that nothing else is borrowed in the near future, the length of time it will take
a government to completely eliminate its stock of debt will be entirely dependent on
how much more annual repayments exceed the annual interest expenses. The
interest expense portion of the debt is a function of the present stock of debt, y, and
is given by
i(y) = y – y?
The amount of money that the government repays to reduce its debt stock is
assumed to be a fraction, a, of the present stock of debt. Repayment is done at the
end of each financial year.
(i)
(ii)
Solve for the present stock of debt, y, as a function of t.
What will happen to government debt as t → o? Justify your response.
Transcribed Image Text:(b) Given that nothing else is borrowed in the near future, the length of time it will take a government to completely eliminate its stock of debt will be entirely dependent on how much more annual repayments exceed the annual interest expenses. The interest expense portion of the debt is a function of the present stock of debt, y, and is given by i(y) = y – y? The amount of money that the government repays to reduce its debt stock is assumed to be a fraction, a, of the present stock of debt. Repayment is done at the end of each financial year. (i) (ii) Solve for the present stock of debt, y, as a function of t. What will happen to government debt as t → o? Justify your response.
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