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
2:15 minutes
Problem 32a
Textbook Question
Textbook QuestionSolve each inequality. Give the solution set in interval notation. | 3/5 + x | < 1
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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 lies within the interval (-B, B). Understanding how to manipulate these inequalities is crucial for solving them correctly.
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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, (a, b) means all numbers between a and b, not including a and b, while [a, b] includes both endpoints.
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Solving Linear Inequalities
Solving linear inequalities involves isolating the variable on one side of the inequality sign. This process is similar to solving equations but requires special attention to the direction of the inequality sign, especially when multiplying or dividing by negative numbers, which reverses the inequality.
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