Chapter R.1, Problem 72PE

PS. Please show complete solution and make sure that your answer is the same at the bottom part. thank u!

Web conferencing has grown over the last 20 years. The amount (in millions of dollars) spent on Web conferencing from 2006 through 2010 is listed in the table. year 2006 2007 2008 2009 2010 Amount 920 1160 1380 1600 1900 a. What is the average rate of change in the amount spent on Web conferencing from 2006 to 2008? Include units. Units are required for this answer. X b. What is the average rate of change in the amount spent on Web conferencing from 2007 to 2008? Include units. c. What is the average rate of change in the amount spent on Web conferencing from 2008 to 2010? Include units. d. What is the average rate of change in the amount spent on Web conferencing from 2008 to 2009? Include units. e. Give a good approximation for the rate of change in the amount spent on Web conferencing by the end of 2008? Include units.

An investment was worth $2,451 in 1993. In 1998, its value was $5,046. Find and interpret the average rate of change in value per year. O A. The average rate of change is 2,451. This means that the value of the investment increased by $2,451 per year during these years. OB. The average rate of change is 519. This means that the value of the investment increased by $519 per year during these years. O C. The average rate of change is 7,641. This means that the value of the investment increased by $7,641 per year during these years. O D. The average rate of change is 519. This means that the value of the investment decreased by $519 per year during these years.