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# Precalculus

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

Table of contents

## 3. Polynomial and Rational Functions

### Complex NumbersAdd and Subtract Complex Numbers

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### Quadratic FunctionsRecognize Characteristics of Parabolas

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### Quadratic FunctionsProblems Involving a Quadratic Function's Minimum or Maximum

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### Polynomial Functions and Their GraphsRecognize Characteristics of Graphs of Polynomial Functions

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### Polynomial Functions and Their GraphsDetermine End Behavior

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### Polynomial Functions and Their GraphsUnderstand the Relationship Between Degree and Turning Points

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### Polynomial Functions and Their GraphsGraph Polynomial Functions

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### Dividing Polynomials, Remainder and Factor TheoremsEvaluate a Polynomial Using the Remainder Theorem

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### Zeros of Polynomial FunctionsUse the Linear Factorization Theorem to Find Polynomials With Given Zeros

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### Rational Functions and Their GraphsUse Arrow Notation

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### Rational Functions and Their GraphsSolve Applied Problems Involving Rational Functions

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### Modeling Using VariationSolve Inverse Variation Problems

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### Modeling Using VariationSolve Problems Involving Joint Variation

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