Personal Consumption Although there was an economic downturn in 2008, personal consumption has grown overall. Table 11.15 lists (approximate) personal consumption C in dollars for selected years x.

X 1959 1982 1990 1998 2009
c $300 $2000 $4000 $6000 $10000
TABLE 11.15 Personal Consumption (dollars)

(a)Make a scatterplot of these data. Use the window[1955, 2010, 10] by [0, 12000, 2000].*
(b) Find a quadratic function given by C(x) = a(x - 1959)2 + k
(c) Estimate when personal consumption was $8000. Compare your answer to the actual value of 2005.

(d) U

Question

Personal Consumption Although there was an economic downturn in 2008, personal consumption has grown overall. Table 11.15 lists (approximate) personal consumption C in dollars for selected years x.


X	1959	1982	1990	1998	2009
c	$300	$2000	$4000	$6000	$10000
TABLE 11.15 Personal Consumption (dollars)

       (a)Make a scatterplot of these data. Use the window[1955, 2010, 10] by [0, 12000, 2000].*
       (b) Find a quadratic function given by C(x) = a(x - 1959)2 + k
       (c) Estimate when personal consumption was $8000. Compare your answer to the actual value of 2005.

       (d) U