Question

c) Write a function modeling this debt situation if the initial debt in 2009 was $500 billion and using the decay factor you chose in (b). Let y be measured in billions of dollar and x represent the number of years since 2009.

y = 500 ∙ (174.24)^x



d) When will Greece be debt-free if you are in charge? Should you reconsider your answer to (b)?

0 = 500 ∙ (174.24)^x

y = 500 ∙ (174.24)^50