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
2. Graphs of Equations
Two-Variable Equations
0:53 minutes
Problem 61
Textbook Question
Textbook QuestionLet ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(-x)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Function Evaluation
Function evaluation involves substituting a specific value into a function to determine its output. In this case, evaluating ƒ(-x) means replacing every instance of 'x' in the function ƒ(x) with '-x'. This process is fundamental in understanding how functions behave under transformations and is crucial for solving the given problem.
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Linear Functions
A linear function is a polynomial function of degree one, typically expressed in the form ƒ(x) = mx + b, where m is the slope and b is the y-intercept. The function ƒ(x) = -3x + 4 is linear, indicating that its graph is a straight line. Understanding the properties of linear functions, such as slope and intercepts, is essential for analyzing their behavior and transformations.
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Algebraic Simplification
Algebraic simplification is the process of rewriting an expression in a more concise or manageable form. This may involve combining like terms, factoring, or reducing fractions. In the context of the question, simplifying the result of ƒ(-x) is necessary to present the final answer clearly and effectively, ensuring that it is in its simplest form.
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