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
Graphs and Coordinates
1:20 minutes
Problem 66
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(3t-2)
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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 input value into a function to determine its output. In this case, we need to evaluate the function ƒ(x) at the input (3t - 2). This process requires replacing every instance of 'x' in the function's expression with the given input.
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Linear Functions
A linear function is a polynomial function of degree one, which can be 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 is essential for evaluating and simplifying expressions involving them.
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Simplification of Expressions
Simplification involves reducing an expression to its simplest form, making it easier to understand or compute. After substituting (3t - 2) into the function ƒ(x), we will perform algebraic operations to simplify the resulting expression. This may include combining like terms and applying the distributive property.
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