The proven approach of Sullivan and Sullivan focuses students on the fundamental skills of the course: prepare for class, practice with homework, and review the concepts.  Precalculus: Enhanced with Graphing Utilities fully integrates graphing utilities into topics, allowing students to explore mathematical concepts and encounter ideas usually studied in later courses. Many examples show solutions using algebra side by side with graphing techniques. The text features a review chapter before covering the traditional precalculus topics of functions and their graphs, polynomial and rational functions, and exponential and logarithmic functions. The trigonometric functions are introduced using a unit circle approach and show how it is related to the right triangle approach.

The 9th Edition is revised and refined throughout, with updated Desmos and screen captures as well as TI-84 Plus CE screens; updates exercise sets with timely and relevant scenarios; adds a new Highlighting Contemporary Mathematicians feature, and much more.

Hallmark features of this title:

Just-in-time review begins all sections to prepare students for the topics ahead, with Preparing for This Section lists and Are You Prepared? Problems.

Section-level guidance helps develop problem-solving skills with Showcase Examples, highlighted Model It examples, Model It exercises, Now Work problems after most examples, Calculus icons and much more.

Challenge Problems are thought provoking and require some ingenuity to solve. They can be used individually or for group work.
Assess Your Understanding appears after every section with a variety of problems for students to master needed skills.

Chapter Reviews offer a variety of convenient tools for reference and review, including You Should be Able To… objective lists and exercises by section; Review Exercises matched to learning objectives; Chapter Tests containing 15-20 problems each; and Cumulative Review problem sets.

New and updated features of this title:

Highlighting Contemporary Mathematicians begin each chapter. These short bios present a selection of diverse contemporary mathematicians and scientists making advancements in various fields, demonstrating math at work in our world and inspiring students to pursue their own mathematical and scientific journeys.

More Desmos and screen captures along with TI-84 Plus CE screen captures have been added throughout. These provide alternate ways of visualizing concepts and making connections between equations, data, and graphs in full color.

All exercise sets have been reviewed and analyzed, with many replaced or updated as needed. All time-sensitive problems, especially those involving data, have been updated to the most recent information available.

Exercises have been updated with current and relevant scenarios such as credit card debt and revenue earned by social media influencers; financial planning exercises utilize dollar amounts more realistic for current students.

Updated Applications and Extensions problems throughout also include many new application-type exercises, many of which involve data drawn from sources the student will recognize, to improve relevance and timeliness.

NEW Key to Exercise Types helps users navigate the features of the exercise sets, using a key at the bottom of the first page for each section’s exercises. Categories include Now Work, Modeling, Explaining Concepts, Calculus Preview, and Interactive Figure.