Can someone please help me? WILL FAN AND GIVE MEDAL
Linda is studying the sale of a particular brand of cereals from the year 1993 to 2004. She writes the following function to model the sale of the cereal S(t), in million dollars, after t years:

S(t) = t2 + 5t + 52

Part A: What is the average rate of change of the sale of the cereal from the first year to the fourth year? Show your work.

Question

Can someone please help me? WILL FAN AND GIVE MEDAL 
Linda is studying the sale of a particular brand of cereals from the year 1993 to 2004. She writes the following function to model the sale of the cereal S(t), in million dollars, after t years:

S(t) = t2 + 5t + 52

Part A:  What is the average rate of change of the sale of the cereal from the first year to the fourth year? Show your work.

error1603 · Answer

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anonymous · Answer

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anonymous · Answer

A. 
 The sale in 1993 

 B. 
 domain = [1993, 2004] 

 C. 
 first year = 1993, sale = S(0) = 52 
 4th year = 1997, sale = S(4) = 88 

 the average rate of change from 1993 to 1997 is 
 r = (S(4) - S(0))/4 = (88 - 52)/4 = 36/4 = 9 million $ per year 

 if the first year is 1994 and the fourth 1998 then 
 r = (S(5) - S(0))/4 = 11 million $ per year

anonymous · Answer

Did you copy and paste that from Answer.com??