Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
1. Equations & Inequalities
Linear Inequalities
2:27 minutes
Problem 30a
Textbook Question
Textbook QuestionSolve each inequality. Give the solution set in interval notation. . | 3x - 4 | ≥ 2
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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 that measure the distance of a number from zero on the number line. The inequality |A| ≥ B means that A is either greater than or equal to B or less than or equal to -B. Understanding how to break down absolute value inequalities into two separate cases is crucial for finding the solution set.
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Interval Notation
Interval notation is a mathematical notation used to represent a range of values. It uses parentheses and brackets to indicate whether endpoints are included (closed interval) or excluded (open interval). For example, the interval [a, b) includes 'a' but not 'b', which is essential for expressing solution sets of inequalities clearly.
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Solving Inequalities
Solving inequalities involves finding the values of a variable that satisfy the given inequality. This process may include isolating the variable, applying properties of inequalities, and considering the direction of the inequality sign. It is important to check the solution by substituting back into the original inequality to ensure correctness.
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