S Homepage Michigan S x VB) Mathematics IMichigan x WeBW 24 Calculus question I

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S Homepage Michigan S x VB) Mathematics IMichigan x WeBW 24 Calculus question I Cheg X Secure h ps://ww2.math msu.edu /webwork2/mt 24 ss17 76260/Hw04/6/? code 5299d8d97ec2379aa2f3c62659a7e 514 HW 04. Propiem b Hw04. Problem 6 Previous Problem List Next User Settings Grades (1 point) Get help entering answers Problems The table below shows the total amount spent, in billions of dollars. on tobacco products in the US. Yea 1987 1988 1989 1990 1991 1992 1993 Spending 349 445 1133 1597 1917 2797 2733 Problem 1 Problem 2 (a) Find the average rate of change in the amount spent on tobacco products between 1987 and 1991. Give units. Problem 3 Problem 4 Answer: The average rate of change and its units Problem 5 Problem 6 (b) During this six-year period, select the one-year intervals during which the average rate of change was negative. There may be more than Problem one correct answer. Problem 8 A. Between 1987 and 1988 Problem 9 B. Between 1988 and 1989 Problem 10 C. Between 1989 and 1990 Problem 11 D. Between 1990 and 1991 Problem 12 E. Between 1991 and 1992 Problem 13 F. Between 1992 and 1993 Problem 14 G. None of the above Note: You can earn partial credit on this problem. Preview My Answers Submit Answers Show me anothe 047 PM /29/2017

Explanation / Answer

a)
rate = {spending(1991) - spending(1987)} / (1991 - 1987)
          = (1917 - 349)/(4)
          = 392 billion dollar / year
Answer: 392 billion dollar / year

b)
rate of change will be negative if spending decreases
A)
spending increases. So rate of change will be positive
B)
spending increases. So rate of change will be positive
C)
spending increases. So rate of change will be positive
D)
spending increases. So rate of change will be positive
E)
spending increases. So rate of change will be positive
F)
spending DEcreases. So rate of change will be negative

Answer: F

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