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You are reading an older version of this FlexBook® textbook: CK-12 Algebra - Basic Go to the latest version.

Chapter 1: Expressions, Equations, and Functions

Difficulty Level: At Grade Created by: CK-12

The study of expressions, equations, and functions is the basis of mathematics. Each mathematical subject requires knowledge of manipulating equations to solve for a variable. Careers such as automobile accident investigators, quality control engineers, and insurance originators use equations to determine the value of variables.

Functions are methods of explaining relationships and can be represented as a rule, a graph, a table, or in words. The amount of money in a savings account, how many miles run in a year, or the number of trout in a pond are all described using functions.

Throughout this chapter, you will learn how to choose the best variables to describe a situation, simplify an expression using the Order of Operations, describe functions in various ways, write equations, and solve problems using a systematic approach.

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Date Created:

Feb 22, 2012

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Apr 29, 2014
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