# Bridges to Algebra and Geometry - 4th Edition

## Chapter 10: Relations and Functions

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Some links are repeated for use with more than one lesson.

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### 10.1 Relations

http://www.coolmath.com/algebra/15-functions/05-domain-range-01.htm
NEW This site (continues for six pages) explains domain and range of relations and functions.

http://www.mathwarehouse.com/algebra/relation/math-function.php
NEW This page demonstrates with examples and video how to find the domain and range of a relation.

### 10.2 Functions

http://www.mathsisfun.com/sets/function.html
NEW This page explains the significance of functions, including the important features and vocabulary terms associated with functions.

http://www.mathwarehouse.com/algebra/relation/evaluating-function.php
NEW This page illustrates a function machine with examples.

### 10.3 Non-Linear Functions

http://ci.columbia.edu/ci/premba_test/c0331/s4/s4_3.html
NEW This page compares several different non-linear functions by name, their graphs, and other properties.

http://www.mathsisfun.com/sets/functions-increasing.html
NEW This page investigates the terms "increasing" and "decreasing" as they apply to non-linear functions.

### 10.4 Properties of Functions

http://www.opusmath.com/common-core-standards/8.f.4-construct-a-function-to-model-a-linear-relationship-between-two
NEW This page gives several practice problems for constructing a function that models a described linear relationship.

http://www.purplemath.com/modules/slopyint.htm
NEW This page gives several examples that explore the meaning of slope and y-intercept in real-world problems represented by linear functions.

http://projectsharetexas.org/sites/default/files/resources/documents/interpret_slope.pdf
NEW This page provides interpretation of and comments on the slope and intercepts of several examples of real-world linear relationships.