Solve each inequality. Give the solution set in interval notation. . | 3x - 4 | ≥ 2
Table of contents
- 0. Review of Algebra4h 18m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations1h 43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 5m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 22m
- 10. Combinatorics & Probability1h 45m
1. Equations & Inequalities
Linear Inequalities
Problem 32
Textbook Question
Solve each inequality. Give the solution set in interval notation. | 3/5 + x | < 1
Verified step by step guidance1
Identify the inequality involving the absolute value: \(| \frac{3}{5} + x | < 1\).
Recall that for an inequality of the form \(|A| < B\), where \(B > 0\), the solution is \(-B < A < B\). Apply this to get: \(-1 < \frac{3}{5} + x < 1\).
Solve the compound inequality by isolating \(x\). First, subtract \(\frac{3}{5}\) from all parts: \(-1 - \frac{3}{5} < x < 1 - \frac{3}{5}\).
Simplify the expressions on both sides by finding a common denominator and performing the subtraction.
Write the solution set for \(x\) in interval notation based on the simplified inequality.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Absolute Value Inequalities
Absolute value inequalities involve expressions within absolute value bars, representing distance from zero. To solve |A| < B, where B > 0, rewrite it as a double inequality: -B < A < B. This approach helps isolate the variable and find the range of values satisfying the inequality.
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Solving Linear Inequalities
Solving linear inequalities requires isolating the variable on one side by performing inverse operations like addition, subtraction, multiplication, or division. When multiplying or dividing by a negative number, the inequality sign reverses. The solution is often expressed as an interval or inequality.
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Interval Notation
Interval notation is a concise way to represent sets of numbers between two endpoints. Parentheses () indicate that endpoints are not included (open interval), while brackets [] mean endpoints are included (closed interval). It is commonly used to express solution sets of inequalities.
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