1. Absolute Value Equations
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Absolute Value Equations
Chapter 1.6 1

2. Absolute Value Equations
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Absolute Value Equations
Absolute value is the distance from zero.
When graphed into a graphing calculator, it is shaped in a “v”
Using absolute value makes values positive. 2

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Quick Examples
Example 1: What is the absolute value of 25?
Example 2: |–25| = x, what is the value of x?
Example 3: |x| = 25, what is the value of x?
|25|= 25 25 25
-25 3

4. Steps for Absolute Value Equations
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Steps for Absolute Value Equations
Write two equations, with one answer being positive and the other being negative
Solve each equation
Check each solution and make sure there aren’t any extraneous solutions 4

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Example 1
Solve and check for extraneous solutions 5

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Example 2
Solve and check for extraneous solutions 6

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Your Turn
Solve and check for extraneous solutions 7

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Example 3
Solve and check for extraneous solutions 8

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Example 4
Solve and check for extraneous solutions 9

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Example 5
Solve and check for extraneous solutions 10

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Example 6
Solve and check for extraneous solutions 11

12. Assignment First Half of Worksheet Remember: p. 123 DUE TODAY
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Assignment
First Half of Worksheet
Remember: p. 123 DUE TODAY
p. 133 DUE MONDAY 12