10) The number of Starbucks stores in the US in 2005 was 8400. In 2014, there were 11,500 Starbucks stores in the US. Let y be the number of Starbucks stores in the US in the year x, where x = 0 represents the year 2005.

a)type a linear equation in slope-intercept form that models the growth in the number of Starbucks stores in the US in terms of x. [Hint: the line must pass through the points

(0, 8400) and (9, 11500)].