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.
TABLE 11.15 Personal Consumption (dollars)
x 1959 1982 1990 1998 2009
C $300 $2000 $4000 $6000 $10,000
Source: BEA.
(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
(b) C (x) = 3.9(x - 1959)2 + 300
that models the data. Graph C and the data.
(Answers may vary.)*
(c) Estimate when personal consumption w

Question

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.
TABLE 11.15 Personal Consumption (dollars)
x 1959 1982 1990 1998 2009
C $300 $2000 $4000 $6000 $10,000
Source: BEA.
(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
(b) C (x) = 3.9(x - 1959)2 + 300
that models the data. Graph C and the data.
(Answers may vary.)*
(c) Estimate when personal consumption w