Math Problem Statement
Solve the following inequality algebraically.
vertical bar, x, minus, 1, vertical bar, is greater than or equal to, 13
∣x−1∣≥13
Solution
The inequality given is:
To solve this algebraically, we use the fact that for any absolute value inequality of the form , where , the inequality can be rewritten as:
In this case, and . Applying this rule, we break the absolute value inequality into two cases:
Case 1:
Add 1 to both sides:
Case 2:
Add 1 to both sides:
Final Solution
Combining both cases, the solution is:
In interval notation, this can be written as:
Would you like more details or have any questions?
Here are 5 related questions to expand your understanding:
- How would the solution change if the inequality were strict () instead of non-strict?
- How do you solve inequalities involving absolute values that are less than a number (e.g., )?
- Can you explain the geometric interpretation of absolute value inequalities on a number line?
- How would this inequality change if we had ?
- What happens when the inequality involves a quadratic expression inside the absolute value?
Tip: When solving absolute value inequalities, always remember to break the problem into two separate inequalities!
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Math Problem Analysis
Mathematical Concepts
Algebra
Absolute Value Inequalities
Formulas
|A| ≥ B can be rewritten as A ≥ B or A ≤ -B
Theorems
Absolute Value Inequality Theorem
Suitable Grade Level
Grades 8-10