Question

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The expenditure of a company for the period 2004 to 2012 can be given by the function y(t) = t^3 – 2t^2 – 16t + 50 , where y is the expenditure (in thousands of dollars) and t is the number of years elapsed since 2004. During which period was the expenditure lower than $18,000 in each year? (Hint: 2004 translates to t = 0.)


A.2004-2007
B.2007-2010
C.2004-2009
D. 2006-2008
E. 2007-2010