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
3. Functions
Intro to Functions & Their Graphs
2:11 minutes
Problem 70
Textbook Question
Textbook QuestionGraph each function. ƒ(x) = -|x|
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Absolute Value Function
The absolute value function, denoted as |x|, outputs the non-negative value of x regardless of its sign. This means that for any real number x, |x| is equal to x if x is positive or zero, and -x if x is negative. Understanding this function is crucial for graphing transformations, as it forms the basis for the shape of the graph.
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Function Composition
Transformation of Functions
Transformations of functions involve shifting, reflecting, stretching, or compressing the graph of a function. In the case of ƒ(x) = -|x|, the negative sign indicates a reflection over the x-axis. This concept is essential for predicting how the graph of a function will change based on modifications to its equation.
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Domain & Range of Transformed Functions
Graphing Techniques
Graphing techniques involve plotting points and understanding the shape and behavior of functions on a coordinate plane. For ƒ(x) = -|x|, the graph will form a 'V' shape that opens downward, with its vertex at the origin (0,0). Mastery of graphing techniques allows for accurate visual representation and analysis of functions.
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Graphs and Coordinates - Example
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