In 1987 a recording artist sold 14,000 albums. In 1998 that same artist sold 4,683 albums. Find the rate of change in record sales from 1987 to 1998. A. 1/847 years per album. B. –847 albums per year. C. 847 albums per year. D. –847 years per album.
The rate of change in the record sales is the difference of the number of albums sold over the time elapsed from 1998 to 1987. That is, rate of change = (4683 - 14000) / (1998 - 1987) = -847 Thus, the answer is letter B.
