January 2015
Intermediate to advanced
1015 pages
318h 54m
English
Content preview from Algebra and Trigonometry, 5th Edition
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1.5 Linear Equations, Functions, Zeros, and Applications
Solve linear equations.
Solve applied problems using linear models.
Find zeros of linear functions.
An equation is a statement that two expressions are equal. To solve an equation in one variable is to find all the values of the variable that make the equation true. Each of these values is a solution of the equation. The set of all solutions of an equation is its solution set. Some examples of equations in one variable are
Linear Equations
The first two equations above are linear equations in one variable. We define such equations as follows.
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