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Question: Dow Jones Industrial Average The graph shows the Dow Jones Industrial Average on a particularly tumultuous day soon after the U.S. credit rating was downgraded from AAA to AA+ in August of 2011. If t represents the number of hours after 9;30 a.m., then the graph defines the Dow Jones Industrial Average D as a function of time t. If we represent this function by D = f(t), use the graph to complete the following.

(a) Find f(0) and f(6.5).

(b) Find the domain and range for D = f(t) as defined by the graph.

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Category:- Statistics and Probability
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