Violent-crime rates in the United States are shown in Table 34 for various years.

Let v be the violent-crime rate (number of violent crimes per 100,000 people) at t years since 2000.
a. Construct a scatterplot.
b. Graph the model v = -11.97t + 531.71 on the scatter- plot. Does it come close to the data points?
c. What is the slope? What does it mean in this situation?
d. In which years were the violent crime rates greater than 400 violent crimes per 100,000 people?

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Table 34 Violent-Crime Rates Number of Violent Crimes per 100,000 People Year 2004 2006 2008 2010 2012 2013 463 474 458 405 388 368