Question: *PLEASE ANSWER FULL QUESTION A-C* The graph shows the Dow Jones Industrial Average on a particularly tumultuous day soon after the U.S. credit rating was
*PLEASE ANSWER FULL QUESTION A-C*
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 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.

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