SOLUTION: The population of the US was 151 nillion in 1950 and 249 million in 1990.
find the slope of the line through the 2 points defined by the population data.
Write a linear equation
Algebra.Com
Question 282709: The population of the US was 151 nillion in 1950 and 249 million in 1990.
find the slope of the line through the 2 points defined by the population data.
Write a linear equation to model the population fo the US t years after 1950
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
Start with 1950, which which we are told should be year t=0.
y = 151 million in 1950.
y = mx + b is the slope-intercept form.
.
We're using the year to predict the population, so t=x-axis.
The population is plotted on y-axis as the dependent variable.
.
So we would define it as:
y = mt + 151, which define defines the point (0,151)
.
1990 would be t=40
1990 population is 249 million
So it would be plotted at (40,249)
.
The slope = rise/run
rise = change in y = 249-151 = 98
run = change in x = change in t = 40-0 = 40
m = slope
m = 98/40
.
That means our equation is:
.
y = 98/40*t + 151
.
Graph it to check
.
.
RELATED QUESTIONS
According to a census, the population of a country was about 151 million in 1936 and 249... (answered by nyc_function)
The population of the US was 151 millions in 1950 and 179 millions in 1960. Estimate the... (answered by checkley77)
In 2003, the population of an African country was about 6.8 million people, which is 3... (answered by ikleyn)
In 1992, the population of the United States was about 249 million and the exponential... (answered by josgarithmetic)
In 2003, the population of an African country was about 25.5 million people, which is 2... (answered by advanced_Learner)
The US population in 1990 was approx. 250 million, and the average growth rate for the... (answered by stanbon)
In 2010, the population of a large city was 42.1 million. This represents an 11%... (answered by Boreal)
the us population in 1990 was approx. 250 million and the average growth rate for the... (answered by stanbon)
The question is:
IN 1990 the united states population of people over 65 years old was... (answered by checkley75,stanbon)