The U.S. and Canadian exchange rates vary daily. The value of the U.S. dollar in terms of the Canadian dollar between 2010 and 2014 can be approximated by the function:
v(t) = -0.002693t(cubed)+0.03610t(squared)-0.1003t+1.0645 where t= number of years since 2010
a. Based on this approximation, in what year durinfg this period did the value of the U.S. dollar reach it's absolute minimum?
b. What was its absolute minimum value?
c. What was the absolute maximum value of the U.S. dollar during this period?