he average surcharge for non-account holders who use an ATM can be modeled as f(x)=0.004x3−0.061x2+0.299x+0.899 dollars
Posted: Thu Jul 14, 2022 4:47 pm
he average surcharge for non-account holders who use an ATM can be modeled as f(x)=0.004x3−0.061x2+0.299x+0.899 dollars here x is the number of years since 1998, data between 1998 and 2007,+ (a) Write the derivative model for f. f′(x)= (b) Estimate the transaction fee in 2013. (Round your answer to two decimal places.) $ (c) Estimate the rate of change of the ATM fee in 2011. (Round your answer to three decimal places.) $ per year