Concept explainers
Worldwide Mobile Phone Shipments For selected years from 2009 and projected to 2016, the number of worldwide mobile phone shipments, in millions, can be modeled by N(t) = –7.88t2 + 335.33t – 1202.14, where t is the number of years after 2000. Because of new technology and market saturation, mobile phone shipments may decrease in the future.
a. Graph the function for the years 2005 through 2020.
b. Graph the function for the years 2005 through 2030 and find the year in which worldwide mobile shipments are a maximum.
c. If the model is valid for years after 2020, what will happen to worldwide mobile shipments?
(Source: portioresearch.com)
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
College Algebra in Context with Applications for the Managerial, Life, and Social Sciences (5th Edition)
- The half-life of plutonium-244 is 80,000,000 years. Find function gives the amount of carbon-14 remaining as a function of time, measured in years.arrow_forwardWhat is the difference between the input and the output of a function?arrow_forwardDraw a sketch of the square and cube functions. What are the similarities and differences in the graphs?arrow_forward
- Determine whether the graph below represents a one-to-one function.arrow_forwardWhy does the horizontal line test tell us whether the graph of a function is one-to-one?arrow_forwardWhen examining the formula of a function that is the result of multiple transformations, how can you tell a horizontal shift from a vertical shift?arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning