The net revenue for a certain car company (in billions of dollars) between the years 2004 and 2012 is approximated by Upper R left parenthesis x right parenthesis equals negative 0.747 x cubed plus 21.4 x squared minus 163.2 x plus 422.4, where xequals4 corresponds to the year 2004. Complete parts (a) and (b) below. (a) What is the revenue in 2007?
Substitute x = 7 in the given equation
R(x)=−0.747 x3 + 21.4 x2 - 163.2 x + 422.4
= −0.747 (73)+ 21.4(72) - 163.2 (7)+ 422.4
= -256.221 + 1048.6 - 1142.4 + 422.4
= 72.379
The net revenue for a certain car company (in billions of dollars) between the years 2004...
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