Concept explainers
For the following exercises, consider this scenario: The population of a city increased steadily over a ten-year span.The following ordered pairs shows the population and the year over the ten-year span, (population, year) for specific recorded years:
37. Use linear regression to determine a
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
College Algebra
Additional Math Textbook Solutions
Linear Algebra with Applications (2-Download)
Differential Equations and Linear Algebra (4th Edition)
Intermediate Algebra
Linear Algebra with Applications (9th Edition) (Featured Titles for Linear Algebra (Introductory))
Graphical Approach To College Algebra
College Algebra (5th Edition)
- For the following exercises, consider this scenario: The population of a city increased steadily over a ten-year span. Thefollowing ordered pairs shows the population (in hundreds) and the year overthe ten-year span, (population, year) forspecific recorded years: (4,500,2000);(4,700,2001);(5,200,2003);(5,800,2006) Predict when the population will hit 20,000.arrow_forwardFor the following exercises, consider this scenario: The population of a city increased steadily over a ten-year span. Thefollowing ordered pairs shows the population (in hundreds) and the year overthe ten-year span, (population, year) forspecific recorded years: (4,500,2000);(4,700,2001);(5,200,2003);(5,800,2006) What is the correlation coefficient for this model?arrow_forwardFor the following exercises, consider this scenario: The population of a city increased steadily overa ten-year span. The following ordered pairs show the population and the year over the ten-year span (population, year) for specific recorded years: (3,600,2000);(4,000,2001);(4,700,2003);(6,000,2006) 45. According to the model, what is the populationin 2014?arrow_forward
- For the following exercises, consider this scenario: The population of a city increased steadily over a ten-year span. The following ordered pairs show the population and the year over the ten-year span (population, year) for specific recorded years: Predict when the population will hit 12,000.arrow_forwardFor the following exercises, consider this scenario: The profit of a company increased steadily over a ten-year span. Thefollowing ordered pairs show the number of units sold in hundreds and the profit in thousands of over the ten-yearspan, (number of units sold, profit) for specific recorded years: (46,250),(48,305),(50,350),(52,390),(54,410). Predict when the profit will exceed one milliondollars.arrow_forwardFor the following exercises, consider this scenario: The profit of a company increased steadily over a ten-year span. Thefollowing ordered pairs show the number of units sold in hundreds and the profit in thousands of over the ten-yearspan, (number of units sold, profit) for specific recorded years: (46,250),(48,305),(50,350),(52,390),(54,410). Use linear regression to determine a function y,where the profit in thousands of dollars depends onthe number of units sold in hundreds.arrow_forward
- For the following exercises, consider this scenario: The profit of a company decreased steadily overa ten-year span.The following ordered pairs show dollars and the number of units sold in hundreds and the profit in thousands ofover the ten-year span (number of units sold, profit) for specific recorded years: (46,250),(48,305),(50,350),(52,390),(54,410). Use linear regression to determine a function y,where the profit in thousands of dollars depends onthe number of units sold in hundreds.arrow_forwardFor the following exercises, consider this scenario: The profit of a company decreased steadily over a ten-year span.The following ordered pairs show dollars and the number of units sold in hundreds and the profit in thousands ofover the ten-year span (number of units sold, profit) for specific recorded years: (46,250),(48,305),(50,350),(52,390),(54,410). Predict when the profit will dip below the $25,000threshold.arrow_forwardFor the following exercises, consider this scenario: The number of people afflicted with the common cold in the winter months steadily decreased by 205 each year from 2005 until 2010. In 2005, 12,025 people were afflicted. When will the output reach 0?arrow_forward
- For the following exercises, consider this scenario: The profit of a company decreased steadily over a ten-year spam.The following ordered pairs shows dollars and the number of units sold in hundreds and the profit in thousands of over the ten-year span, (number of units sold, profit) for specific recorded years: (46,600),(48,550),(50,505),(52,540),(54,495). Find to the nearest tenth and interpret they-intercept.arrow_forwardFor the following exercises, consider this scenario: A town’s population has been increased at a constant rate. In2010 the population was 46,020. By 2012 the population had increased to 52,070. Assume this trend continues. 12. Identify the year in which the population will reach75,000.arrow_forwardFor the following exercises, consider this scenario: The population of a city increased steadily over a ten-year span.The following ordered pairs shows the population and the year over the ten-year span, (population, year) for specific recorded years: (2500,2000),(2650,2001),(3000,2003),(3500,2006),(4200,2010) 38. Predict when the population will hit 8,000.arrow_forward