Question 133561
Given the model of {{{f(x)=0.0059x^2 +0.65x+4.3}}} where x is the number of years since 1990. 
Predict the sales in the years 2001.

1) Determine how many years 2001 is "after 1990" --> {{{ 2001 - 1990 }}} = 11.
So, x in the year 2001 will be 11

2) Plug in x from step 1 into the given function
{{{ f(x)=0.0059x^2 +0.65x+4.3}}}
{{{ f(x) = 0.0059*(11)^2 + 0.65*(11) + 4.3}}}
{{{ f(x) = 0.714 + 7.15 + 4.3 }}}
{{{ f(x) = 12.164 }}}
rounded is nearest tenth million is 12.2