Prentice Hall Algebra 2

2-1 Relations and Functions

Objectives

To graph relations

To identify functions

A solve it problem.
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You can use mappings to describe relationships between sets of numbers.

Essential Understanding A pairing of items from two sets is special if each item from one set pairs with exactly one item from the second set.

A relation is a set of pairs of input and output values. You can represent a relation in four different ways as shown below.


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Table of Contents

Prentice Hall Algebra 2 Chapter 1 Expressions, Equations, and Inequalities Chapter 2 Functions, Equations, and Graphs Chapter 3 Linear Systems Chapter 4 Quadratic Functions and Equations Chapter 5 Polynomials and Polynomial Functions Chapter 6 Radical Functions and Rational Exponents Chapter 7 Exponential and Logarithmic Functions Chapter 8 Rational Functions Chapter 9 Sequences and Series Chapter 10 Quadratic Relations and Conic Sections Chapter 11 Probability and Statistics Chapter 12 Matrices Chapter 13 Periodic Functions and Trigonometry Chapter 14 Trigonometric Identities and Equations Skills Handbook English/Spanish Illustrated Glossary Selected Answers Index Acknowledgments