DECLINING NUMBER of pay PHONES As cell phones proliferate, the number of pay phones continues to drop. The number of pay phones from 2004 through 2009 (in millions) are shown in the following table (x = 0 corresponds to 2004):
Year, x  0  1  2  3  4  5 
Number of Pay Phones  1.30  1.5  1.00  0.84  0.69  0.56 
(a)
To sketch: The graph of number of pay phones
The table shown below shows the number of pay phones from 2004 through 2009 ( in millions):
Year,
 0  1  2  3  4  5 
Number of pay phones,





(b)
To sketch: The graph of a straight line through the points
(c)
To find: The equation of straight line through the points
(d)
To find: The value of number of pay phones in 2012.
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