Solving quadratic equations by substitution (Section 9.3)
Evaluating expressions involving the greatest integer (Section 11.1)
Graphing hyperbolas (Section 11.3)
Evaluating factorials and binomial coefficients (Section 12.4)
We have included the following helpful features, each of which is designed to in-
crease ease-of-use by students and/or instructors.
Annotated Instructor’s EditionFor convenient reference, we include answers to
the exercises “on page” in the Annotated Instructor’s Edition,using an enhanced,
easy-to-read format. In addition, we have added approximately 15 new Teaching Tips
and over 40 new and updated Classroom Examples.
Relevant Chapter OpenersIn the new and updated chapter openers, we feature
real-world applications of mathematics that are relevant to students and tied to spe-
cific material within the chapters. Examples of topics include Americans’ spending
on pets, television ownership and viewing, and tourism. Each opener also includes a
section outline. (See pages 1, 47, and 263.)
Helpful Learning Objectives We begin each section with clearly stated, numbered
objectives, and the included material is directly keyed to these objectives so that students
and instructors know exactly what is covered in each section. (See pages 2 and 48.)
Popular Cautions and Notes One of the most popular features of previous
editions, we include information marked and NOTEto warn students
about common errors and emphasize important ideas throughout the exposition. The
updated text design makes them easy to spot. (See pages 53 and 140.)
Comprehensive Examples The new edition of this text features a multitude of
step-by-step, worked-out examples that include pedagogical color, helpful side com-
ments, and special pointers. We give increased attention to checking example
solutions—more checks, designated using a special CHECKtag, are included than in
past editions. (See pages 51 and 270.)
More PointersWell received by both students and instructors in the previous edi-
tion, we incorporate more pointers in examples and discussions throughout this
edition of the text. They provide students with important on-the-spot reminders and
warnings about common pitfalls. (See pages 96 and 396.)
Updated Figures, Photos, and Hand-Drawn GraphsToday’s students are
more visually oriented than ever. As a result, we have made a concerted effort to in-
clude appealing mathematical figures, diagrams, tables, and graphs, including a
“hand-drawn” style of graphs, whenever possible. (See pages 138 and 532.) Many of
the graphs also use a style similar to that seen by students in today’s print and elec-
tronic media. We have incorporated new photos to accompany applications in exam-
ples and exercises. (See pages 154 and 168.)
Relevant Real-Life Applications We include many new or updated applications
from fields such as business, pop culture, sports, technology, and the life sciences
that show the relevance of algebra to daily life. (See pages 76 and 244.)
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