-Consider Figure 7.6,which shows the unemployment rate from 1948-2010.
(a)What does the smooth line represent? How can it be represented?
(b)Based solely on this data,was the period from approximately 1963-1971 an expansion or recession? Explain.What about the period 1981-1986?
(c)Based on the data presented,what is your prediction for future rates of unemployment?

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The Answer of 
-Consider Figure 7.6,which shows the unemployment rate from 1948-2010.
(a)What does the smooth line represent? How can it be represented?
(b)Based solely on this data,was the period from approximately 1963-1971 an expansion or recession? Explain.What about the period 1981-1986?
(c)Based on the data presented,what is your prediction for future rates of unemployment?