Problem

See Examples 1, 2, 4 , and 5 as you do Exercise 52.The graph on the following page from th...

See Examples 1, 2, 4 , and 5 as you do Exercise 52.

The graph on the following page from the U.S. Office of Management and Budget shows the federal debt from the year 2007 to the year 2012 (in billions of dollars), with x = 7 corresponding to the year 2007. Find the rule of a linear function g that passes through the two points corresponding to 2007 and 2012. Draw the graph of g.

Example 1

Graph the following function:

Example 2

Graph the function

Example 3

Figure 3.12, on the following page, shows the median sales prices (in thousands of dollars) of new privately owned one−family houses by region of the United States (northeast, midwest, south, and west) from the years 2005 to 2011.

 

Example 4

Figure 3.13 is the graph of the function f whose rule is f(x) = average interest rate on a 30−year fixed−rate mortgage for a new home in year x.

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