In 1950 there were 249,187 immigrants admitted to the United States. In 2008, th
ID: 3344582 • Letter: I
Question
In 1950 there were 249,187 immigrants admitted to the United States. In 2008, the number was 1,107,126.
a) assuming that the change in immigration is linear, write and equation expressing the number of immigrants (y), in terms of (t), the number of years after 1900.
b) use your results in part a to predict the number of immigrants admitted to the United States in 2015.
c) considering the value of the y-intercept in your answer to part a, discuss the validity of using this equation to model the number of immigrants throughout the entire 20th century.
Explanation / Answer
(y-1107126)/(t-108)=857939/58
so at t=115
y=1210670 (approx.)
at t=0 y=-490415(which is not possible as population cannot be negative)
So it will not really give a valid result about the no. of immigrants in 20th century