Algebra and
Trigonometry
SEVENTH EDITION
ROBERT F. BLITZER
GLOBAL
EDITION

A Brief Guide to Getting the Most from This Book
Feature Description Benefit
Section-Opening
Scenarios
Every section opens with a scenario
presenting a unique application of
algebra or trigonometry in your life
outside the classroom.
Realizing that algebra and trigonometry are
everywhere will help motivate your learning.
(See page 136.)
Examples are clearly written and
provide step-by-step solutions. No
steps are omitted, and each step is
thoroughly explained to the right of the
mathematics.
The blue annotations will help you
understand the solutions by providing the
reason why every algebraic or trigonometric
step is true. (See page 138.)
Applications Using
Real-World Data
Interesting applications from nearly
every discipline, supported by
up-to-date real-world data, are
included in every section.
Ever wondered how you’ll use algebra
and trigonometry? This feature will show
you how they can solve real problems.
(See pages 294–296.)
Answers to students’ questions offer
suggestions for problem solving, point
out common errors to avoid, and
provide informal hints and suggestions.
By seeing common mistakes, you’ll be able
to avoid them. This feature should help
you not to feel anxious or threatened when
asking questions in class. (See page 139.)
Brief Reviews cover skills you already
learned but may have forgotten.
Having these refresher boxes easily
accessible will help ease anxiety about
skills you may have forgotten.
(See page 508.)
These enrichment essays provide
historical, interdisciplinary, and
otherwise interesting connections to the
algebra or trigonometry under study.
Yet even more proof that math is an
interesting and dynamic discipline!
(See page 195.)
Voice balloons help to demystify algebra
and trigonometry. They translate math
into plain English, clarify problemsolving procedures, and present
alternative ways of understanding.
Does math ever look foreign to you? This
feature often translates math into everyday
English. (See page 193.)