Fitting Linear Models to Data · Exercise 117

Use the table, which shows the percent of unemployed persons 25 years or older who are college graduates in a particular city, by year.
$$\begin{array}{cccccc}\text{Year}& \text{2000}& \text{2002}& \text{2005}& \text{2007}& \text{2010}\\ \text{Percent Graduates}& \text{8.5}& \text{8.0}& \text{7.2}& \text{6.7}& \text{6.4}\end{array}$$

Determine whether the trend appears linear. If so, and assuming the trend continues, find a linear regression model to predict the percent of unemployed in a given year to three decimal places.

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Algebra and Trigonometry 2e · §4.3 Fitting Linear Models to Data · Exercise 117