Sales of SUV's in the US (in millions) for the years 1990-1999 can be modeled by the quadratic function. f(x)+0.016x^2+0.124x+0.787

Here x=0 represents 1990, x=1 represents 1991, and so on. Use the model to approximate sales in 1996. Sales in 1996 were approximately how many million SUV's. Round to the nearest tenth.

Solution:

       f(x) = 0.016x^2+0.124x+0.787

        f(6) = 0.016(6)^2+0.124(6)+0.787

               = 2.1million