AIDS Cases The number of AIDS cases diagnosed from 2000 through 2007 can be modeled...

AIDS Cases The number of AIDS cases diagnosed from 2000 through 2007 can be modeled as

where x is the number of years since 2000.

(Source: Based on data from U.S. Centers for Disease Control and Prevention)

a. Calculate and write a sentence of interpretation for the average rate of change in the number of persons diagnosed with AIDS between 2000 and 2007.

b. Calculate the percentage change in the number of persons diagnosed with AIDS between 2000 and 2007.