Answer parts (a) through (c). 2000 2010 2020 2030 2040 2050 (millions) 275.8 C 307.9 326.6 355.3 381.1 406.6 2060 2070 2080 2090 2100 (millions) 438.7 472.4 507.3 537.9 576.6 (a) Find a linear function that models this data, with x equal to the number of years after 2000 and f(x) equal to the population in millions. f(x) = (Use integers or decimals for any numbers in the expression. Round to three decimal places as needed.)

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