## College AlgebraAccessible to students and flexible for Accessible to students and flexible for instructors, COLLEGE ALGEBRA, SEVENTH EDITION, uses the dynamic link between concepts and applications to bring mathematics to life. By incorporating interactive learning techniques, the Aufmann team helps students to better understand concepts, work independently, and obtain greater mathematical fluency. The text also includes technology features to accommodate courses that allow the option of using graphing calculators. Additional program components that support student success include tutorial practice, online homework, Live Online Tutoring, and Instructional DVDs. The authors' proven Aufmann Interactive Method allows students to try a skill as it is presented in example form. This interaction between the examples and Try Exercises serves as a checkpoint to students as they read the textbook, do their homework, or study a section. In the Seventh Edition, Review Notes are featured more prominently throughout the text to help students recognize the key prerequisite skills needed to understand new concepts. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. |

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### Contents

Preliminary Concepts | 1 |

Equations and Inequalities | 75 |

Functions and Graphs | 153 |

Polynomial and Rational Functions | 259 |

Exponential and Logarithmic Functions | 333 |

Topics in Analytic Geometry | 427 |

Systems of Equations and Inequalities | 471 |

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### Common terms and phrases

5xƒx Applications arithmetic sequence binomial coefficient complex number constant coordinates denominator determine Directrix distance domain earthquake ellipse Evaluate EXAMPLE Exercise Set exponent factor Find the equation foci focus formula ƒxƒ geometric sequence given graph of f graphing calculator graphing utility height horizontal asymptote hyperbola inches inequality intersect interval notation length linear equations logarithmic function logb logistic Mathematical Induction matrix maximum miles per hour natural number nearest tenth ordered pairs parabola polynomial function population positive integers produce radius rational expression rational function Rational Zero Rational Zero Theorem real numbers real zeros regression Richter scale Round row echelon form set-builder notation shown in Figure Simplify sketch the graph slope solution set Solve speed standard form Substitute synthetic division system of equations temperature term Theorem trinomial Try Exercise variable vertex vertical asymptote Write x-axis x-intercepts y-axis