In 2005, you have 45 CDs in your collection. In 2008, you have 150 CDs. In 2012, you have 30 CDs. What is the average rate of change in the size of your CD collection between:
(a) 2005 and 2008?

(b) 2008 and 2012?

(c) 2005 and 2012?

Question

In 2005, you have 45 CDs in your collection. In 2008, you have 150 CDs. In 2012, you have 30 CDs. What is the average rate of change in the size of your CD collection between:
(a) 2005 and 2008? 
 
(b) 2008 and 2012? 
 
(c) 2005 and 2012?

danjs · Answer

average rate of change -- slope of a line through the two points

danjs · Answer

points ( time, #CD's)