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
5. Rational Functions
Graphing Rational Functions
3:23 minutes
Problem 97
Textbook Question
Textbook QuestionIn Exercises 95–98, use long division to rewrite the equation for g in the form quotient + remainder/divisor. Then use this form of the function's equation and transformations of f(x) = 1/x to graph g. g(x)=(3x−7)/(x−2)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Polynomial Long Division
Polynomial long division is a method used to divide a polynomial by another polynomial of equal or lower degree. It involves dividing the leading term of the dividend by the leading term of the divisor, multiplying the entire divisor by this result, and subtracting it from the dividend. This process is repeated until the degree of the remainder is less than the degree of the divisor, resulting in a quotient and a remainder.
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Rational Functions
A rational function is a function that can be expressed as the ratio of two polynomials. In the case of g(x) = (3x - 7)/(x - 2), the numerator and denominator are both polynomials. Understanding the behavior of rational functions, including their asymptotes and intercepts, is crucial for graphing them accurately and analyzing their transformations.
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Transformations of Functions
Transformations of functions involve shifting, stretching, compressing, or reflecting the graph of a function. For the function f(x) = 1/x, transformations can include vertical and horizontal shifts, which affect the position of the graph. When graphing g(x) based on f(x), recognizing how these transformations apply will help in accurately depicting the behavior of g(x) in relation to f(x).
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