# Preface  (Page 5/5)

 Page 5 / 5

Section Exercises are organized by question type, and generally appear in the following order:

• Verbal questions assess conceptual understanding of key terms and concepts.
• Algebraic problems require students to apply algebraic manipulations demonstrated in the section.
• Graphical problems assess students’ ability to interpret or produce a graph.
• Numeric problems require the student perform calculations or computations.
• Technology problems encourage exploration through use of a graphing utility, either to visualize or verify algebraic results or to solve problems via an alternative to the methods demonstrated in the section.
• Extensions pose problems more challenging than the Examples demonstrated in the section. They require students to synthesize multiple learning objectives or apply critical thinking to solve complex problems.
• Real-World Applications present realistic problem scenarios from fields such as physics, geology, biology, finance, and the social sciences.

## Chapter review features

Each chapter concludes with a review of the most important takeaways, as well as additional practice problems that students can use to prepare for exams.

• Key Terms provides a formal definition for each bold-faced term in the chapter.
• Key Equations presents a compilation of formulas, theorems, and standard-form equations.
• Key Concepts summarizes the most important ideas introduced in each section, linking back to the relevant Example(s) in case students need to review.
• Chapter Review Exercises include 40-80 practice problems that recall the most important concepts from each section.
• Practice Test includes 25-50 problems assessing the most important learning objectives from the chapter. Note that the practice test is not organized by section, and may be more heavily weighted toward cumulative objectives as opposed to the foundational objectives covered in the opening sections.
• Answer Key includes the answers to all Try It exercises and every other exercise from the Section Exercises, Chapter Review Exercises, and Practice Test.

## Ancillaries

OpenStax projects offer an array of ancillaries for students and instructors. Currently the following resources are available.

• Instructor’s Solutions Manual
• Student’s Solutions Manual
• PowerPoint Slides

Please visit http://openstaxcollege.org to view an up-to-date list of the Learning Resources for this title and to find information on accessing these resources.

## Online homework

WebAssign is an independent online homework and assessment solution first launched at North Carolina State University in 1997. Today, WebAssign is an employee-owned benefit corporation and participates in the education of over a million students each year. WebAssign empowers faculty to deliver fully customizable assignments and high quality content to their students in an interactive online environment. WebAssign supports Precalculus with hundreds of problems covering every concept in the course, each containing algorithmically-generated values and links directly to the eBook providing a completely integrated online learning experience.

Learningpod is the best place to find high-quality practice and homework questions. Through our partnership with OpenStax we offer easy-to-use assignment and reporting tools for professors and a beautiful practice experience for students. You can find questions directly from this textbook on Learningpod.com or through the OpenStax mobile app. Look for our links at the end of each chapter!
Practice questions on the Learningpod website: www.learningpod.com

## Lead author, senior content expert

Jay Abramson has been teaching Precalculus for 33 years, the last 14 at Arizona State University, where he is a principal lecturer in the School of Mathematics and Statistics. His accomplishments at ASU include co-developing the university’s first hybrid and online math courses as well as an extensive library of video lectures and tutorials. In addition, he has served as a contributing author for two of Pearson Education’s math programs, NovaNet Precalculus and Trigonometry. Prior to coming to ASU, Jay taught at Texas State Technical College and Amarillo College. He received Teacher of the Year awards at both institutions.

## Contributing authors

• Valeree Falduto, Palm Beach State College
• Rachael Gross, Towson University
• David Lippman, Pierce College
• Melonie Rasmussen, Pierce College
• Rick Norwood, East Tennessee State University
• Nicholas Belloit, Florida State College Jacksonville
• Jean-Marie Magnier, Springfield Technical Community College
• Harold Whipple
• Christina Fernandez

## Faculty reviewers and consultants

• Nina Alketa, Cecil College
• Kiran Bhutani, Catholic University of America
• Brandie Biddy, Cecil College
• Lisa Blank, Lyme Central School
• Bryan Blount, Kentucky Wesleyan College
• Jessica Bolz, The Bryn Mawr School
• Sheri Boyd, Rollins College
• Sarah Brewer, Alabama School of Math and Science
• Charles Buckley, St. Gregory's University
• Michael Cohen, Hofstra University
• Kenneth Crane, Texarkana College
• Rachel Cywinski, Alamo Colleges
• Nathan Czuba
• Srabasti Dutta, Ashford University
• Kristy Erickson, Cecil College
• Nicole Fernandez, Georgetown University / Kent State University
• David French, Tidewater Community College
• Douglas Furman, SUNY Ulster
• Lance Hemlow, Raritan Valley Community College
• Erinn Izzo, Nicaragua Christian Academy
• John Jaffe
• Jerry Jared, Blue Ridge School
• Stan Kopec, Mount Wachusett Community College
• Kathy Kovacs
• Cynthia Landrigan, Erie Community College
• Sara Lenhart, Christopher Newport University
• Wendy Lightheart, Lane Community College
• Joanne Manville, Bunker Hill Community College
• Karla McCavit, Albion College
• Cynthia McGinnis, Northwest Florida State College
• Lana Neal, University of Texas at Austin
• Rhonda Porter, Albany State University
• Steven Purtee, Valencia College
• William Radulovich, Florida State College Jacksonville
• Alice Ramos, Bethel College
• Nick Reynolds, Montgomery Community College
• Amanda Ross, A. A. Ross Consulting and Research, LLC
• Erica Rutter, Arizona State University
• Sutandra Sarkar, Georgia State University
• Willy Schild, Wentworth Institute of Technology
• Todd Stephen, Cleveland State University
• Scott Sykes, University of West Georgia
• Linda Tansil, Southeast Missouri State University
• John Thomas, College of Lake County
• Diane Valade, Piedmont Virginia Community College
• Allen Wolmer, Atlanta Jewish Academy

how fast can i understand functions without much difficulty
what is set?
a colony of bacteria is growing exponentially doubling in size every 100 minutes. how much minutes will it take for the colony of bacteria to triple in size
I got 300 minutes. is it right?
Patience
no. should be about 150 minutes.
Jason
It should be 158.5 minutes.
Mr
ok, thanks
Patience
100•3=300 300=50•2^x 6=2^x x=log_2(6) =2.5849625 so, 300=50•2^2.5849625 and, so, the # of bacteria will double every (100•2.5849625) = 258.49625 minutes
Thomas
what is the importance knowing the graph of circular functions?
can get some help basic precalculus
What do you need help with?
Andrew
how to convert general to standard form with not perfect trinomial
can get some help inverse function
ismail
Rectangle coordinate
how to find for x
it depends on the equation
Robert
yeah, it does. why do we attempt to gain all of them one side or the other?
Melissa
whats a domain
The domain of a function is the set of all input on which the function is defined. For example all real numbers are the Domain of any Polynomial function.
Spiro
Spiro; thanks for putting it out there like that, 😁
Melissa
foci (–7,–17) and (–7,17), the absolute value of the differenceof the distances of any point from the foci is 24.
difference between calculus and pre calculus?
give me an example of a problem so that I can practice answering
x³+y³+z³=42
Robert
dont forget the cube in each variable ;)
Robert
of she solves that, well ... then she has a lot of computational force under her command ....
Walter
what is a function?
I want to learn about the law of exponent
explain this