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2009 PBLPathways The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can be modeled by the equation where x represents the number of years after Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997). (Source: S&P Comstock) x y
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example 8 Stock Prices
Chapter 6.3
The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can bemodeled by the equation
where x represents the number of years after 1990. Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997).(Source: S&P Comstock)
3 22.56 53.73 356.47 772.74y x x x
2009 PBLPathways
2009 PBLPathways
The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can bemodeled by the equation
where x represents the number of years after 1990. Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997).(Source: S&P Comstock)
3 22.56 53.73 356.47 772.74y x x x
2009 PBLPathways
The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can bemodeled by the equation
where x represents the number of years after 1990. Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997).(Source: S&P Comstock)
3 22.56 53.73 356.47 772.74y x x x
x
y3 2
3 2
15 2.56 53.73 356.47 772.74
0 2.56 53.73 356.47 757.74
x x x
x x x
2009 PBLPathways
The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can bemodeled by the equation
where x represents the number of years after 1990. Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997).(Source: S&P Comstock)
3 22.56 53.73 356.47 772.74y x x x
x
y3 2
3 2
15 2.56 53.73 356.47 772.74
0 2.56 53.73 356.47 757.74
x x x
x x x
2009 PBLPathways
The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can bemodeled by the equation
where x represents the number of years after 1990. Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997).(Source: S&P Comstock)
3 22.56 53.73 356.47 772.74y x x x
x
y3 2
3 2
15 2.56 53.73 356.47 772.74
0 2.56 53.73 356.47 757.74
x x x
x x x
3 22.56 53.73 356.47 757.74y x x x
2009 PBLPathways
The closing price of a share of Worldcom, Inc. stock for the years 1994–2000 can bemodeled by the equation
where x represents the number of years after 1990. Assuming that this trend continues, graphically determine the years after 1999 in which the closing price was $15 (roughly the cost of the stock in 1997).(Source: S&P Comstock)
3 22.56 53.73 356.47 772.74y x x x
x
y3 2
3 2
15 2.56 53.73 356.47 772.74
0 2.56 53.73 356.47 757.74
x x x
x x x
x-intercepts at x 4.9, 6.0, 10.1
3 22.56 53.73 356.47 757.74y x x x
