Question: Nonmarital childbearing the percent of live births to unmarried mothers for the years 1970-2007 can be modeled by the function
y = -33.410 + 18.035 ln x
where x is the number of years past 1960.
(a) What does the model predict the rate of change of this percent to be in 2015?
(b) Is the percent of live births to unmarried mothers predicted to increase or decrease after 2015?