SOLUTION: In 2000 the population density of the United States was 80 people per square mile, and in 2011 it was 88 people per square mile. Use a linear function to estimate when the U.S. pop

Question 1053543: In 2000 the population density of the United States was 80 people per square mile, and in 2011 it was 88 people per square mile. Use a linear function to estimate when the U.S. population will reach 91 people per square mile.

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
2011 , 88
2000 , 80
m = 8/11
y -80 = (8/11)(x - 2000)
y = (8/11)x -(8/11)2000 + 80
|
91 = (8/11)x -(8/11)2000 + 80
91 +(8/11)2000 - 80= (8/11)x
(11/8)[11 + (8/11)2000 ] = x
121/8 + 2000 = x = 2015.125
In the year 2015
RELATED QUESTIONS
In 1982 the population density of a country was 64 people per square mile, and in 2002 it (answered by ikleyn)

In 2000, the population of the United States was estimated to be 282 million people and... (answered by Boreal,MathTherapy)

In 1992, the population of the United States was about 249 million and the exponential... (answered by josgarithmetic)

In 1960, a certain country's population was 76,568,921, and its area was... (answered by ikleyn)

The land area of a country is about 10 miles square miles and its population is about 100 (answered by josmiceli)

the census bureau estimates that the United States population will grow by 296 million... (answered by stanbon)

In 2010, the population of Salt Lake City, Utah, was 186,440 and the population density... (answered by rfer)

The population denstity in Tustin Foothills is about 3589 people per square mile. the... (answered by ankor@dixie-net.com)

According to the U.S. Census Bureau the population of the United States has been growing... (answered by stanbon)