SOLUTION: In 2002, the population of a certain country per square mile of land area was 87. In 2000, the person per square mile population was 85.8.Assume the relationship between years and

Algebra ->  Finance -> SOLUTION: In 2002, the population of a certain country per square mile of land area was 87. In 2000, the person per square mile population was 85.8.Assume the relationship between years and      Log On


   

Question 913789: In 2002, the population of a certain country per square mile of land area was 87.
In 2000, the person per square mile population was 85.8.Assume the relationship between years and persons per square mile is a linear relationship.
A) Write an equation in slope intercept form,describing the relationship between tear and persons per square mile.Use ordered pairs of the form(x,y) where x is the number of years past 2000 and y is persons per square mile.
B)Use this equation to predict the person per square mile population in 2030.

a)What is the equation describing the linear relationship?
y=

b)Use the equation from part (a) to determine the person per square mile population in 2030.
(decimal number)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
(2, 87)
(0, 85.8) m = 1.2 /2 = .6
y - 85.68 = .6(x-0)
y = .6x + 85.68
In 2030 (x=30)
y = .6(30) + 85.68 = 103.68