Exponential & Logarithmic Functions.
1) . An initial investment of $1000 is appreciated for 8 years in an account that earns 9% interest, compounded annually. Find the amount of money in the account at the end of the period. please show all work.

2). Let f(x) = 3x. Find f( 2).

Question

Exponential & Logarithmic Functions.
1)  . An initial investment of $1000 is appreciated for 8 years in an account that earns 9% interest, compounded annually. Find the amount of money in the account at the end of the period.  please show all work.

2). Let f(x) = 3x. Find f( 2).

anonymous · Answer

first one is straight application of the compound interest formula.

for the second one, replace x by 2 wherever you see it.
so 3x becomes 3*2

anonymous · Answer

compound interest formula http://qrc.depaul.edu/StudyGuide2009/Notes/Savings%20Accounts/Compound%20Interest.htm

anonymous · Answer

Thanks websites helps to better understands.