Business: Marketing to Young Adults Companies selling products to young adults often t...

Business: Marketing to Young Adults Companies selling products to young adults often try to predict the size of that population in future years. According to predictions by the Census Bureau, the 18- to 24-year-old population in the United States will follow the curve shown below.

(in thousands), where x is the number of years after 2010. Find the rate of change of this population:

a. In the year 2030 and interpret your answer.

b. In the year 2010 and interpret your answer.