Sales of automobiles worldwide continues to grow as emerging economies provide their citizens more purchasing power. in 2011
,
there were 57

thousand new car sales in a region, and in 2014, this number increased to 66 thousand

cars. assume that the relationship between time, x, and number of new cars sold, y, is a linear relationship.
a. write an equation describing the relationship between time and the number of new automobiles sold in the region. use ordered pairs of the form (years past 2011
,
number of automobiles sold).
b. use this equation to predict the number of new car sales in the region in the year 2017
.
a. the equation describing the relationship is nothing
.
(type your answer in slope-intercept form.)
b. in the year 2017
,
nothing

thousand new cars will be sold.
(simplify your answer.)