The bar graph shows that the fraction of U.S adults who use the Internet has continued to increase. The data can be modeled by I = 3 100 x + 1 2 , where l is the fraction, of adults who used the internet x years after 2000. Use this information to solve Exercises 129−130. 130. a. Use the formula to find the fraction of adults who used the Internet in 2014.tions. b. Use the least common denominator to compare the fraction of adults shown by the graph who used the Internet in 2014 with the fraction obtained by the mathematical model in part (a). Does the formula underestimate or overestimate the fraction shown by the graph? By how much?tions. c. Use the formula to project the fraction of adults who will use the Internet in 2015.
The bar graph shows that the fraction of U.S adults who use the Internet has continued to increase. The data can be modeled by I = 3 100 x + 1 2 , where l is the fraction, of adults who used the internet x years after 2000. Use this information to solve Exercises 129−130. 130. a. Use the formula to find the fraction of adults who used the Internet in 2014.tions. b. Use the least common denominator to compare the fraction of adults shown by the graph who used the Internet in 2014 with the fraction obtained by the mathematical model in part (a). Does the formula underestimate or overestimate the fraction shown by the graph? By how much?tions. c. Use the formula to project the fraction of adults who will use the Internet in 2015.
Solution Summary: The author explains how the mathematical formula overestimates the tion of U.S. adults who use the internet.
The bar graph shows that the fraction of U.S adults who use the Internet has continued to increase.
The data can be modeled by
I
=
3
100
x
+
1
2
,
where l is the fraction, of adults who used the internet x years after 2000. Use this information to solve Exercises 129−130. 130.
a. Use the formula to find the fraction of adults who used the Internet in 2014.tions.
b. Use the least common denominator to compare the fraction of adults shown by the graph who used the Internet in 2014 with the fraction obtained by the mathematical model in part (a). Does the formula underestimate or overestimate the fraction shown by the graph? By how much?tions.
c. Use the formula to project the fraction of adults who will use the Internet in 2015.
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