In 1980, median family income was about $19,000, and in 2000 it was about $41,000.
(a*) Find the slope of the line passing through the points (1980,19000 and (2000,41000). M=?
(b*) Interpret as a rate of change. Choose the correct answer below.
(a) The median family increases by $1100 between 1980 and 2000.
(b) The median family income is decreasing at the rate of $1100 per year.
(c) The median family income is increasing at the rate of $1100 per year.
(d) The median family decreases by $1100 between 1980 and 2000.
(c*) If this trend continues, estimate the median family income in 2002 will be what in dollars?