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Unformatted text preview: Math 1310 Class Notes – Section 2.8, Page 1 of 5 Math 1310 Section 2.8 Absolute Value In this lesson, you’ll learn to solve absolute value equations and inequalities. • Evaluating with absolute value Example 1: Evaluate 3(1 7 ) x when x = 3. • Absolute value equations Next, we’ll look at absolute value equations. You can use this rule: for any positive C, C x = implies C x ± = . If C is negative, then there is no solution. If C = 0, then x = 0. Example 2: Solve for x : 8 = x Example 3: Solve for x : 3 = x Example 4: Solve for x : 12 5 = + x Math 1310 Class Notes – Section 2.8, Page 2 of 5 Example 5: Solve for x : 15 5 2 = + x Example 6: Solve for x : 12 1 3 = x Example 7: 5 2 3 1 11 x + =  Example 8: Solve for x : 3 8 1 3 = + + x Math 1310 Class Notes – Section 2.8, Page 3 of 5 • Absolute value inequalities Next, we’ll look at inequalities. The approach to these problems will depend on whether the problem is a “less than” problem or a “greater than” problem. the problem is a “less than” problem or a “greater than” problem....
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 Summer '08
 MARKS
 Equations, Inequalities, Negative and nonnegative numbers, real number line

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