Consider the following table gives projections of the U.S. population from 2000 to 2100.

Year	Population (millions)	Year	Population (millions)
2000	275.3	2060	432.0
2010	299.9	2070	463.6
2020	324.9	2080	497.8
2030	351.1	2090	533.6
2040	377.4	2100	571.0
2050	403.7

(a) Let us find a linear function that models the data, with x equals to the number of years after 2000 andequal to the population in millions.

Enter the data from the above table in the lists of a graphing utility.

The figure below shows a partial list of the data points.

The equation that fits best for the data, found using linear regression with a graphing calculator.

The equation, rounded to three decimal places, is. Thus, the linear function that models the data is.