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Published byJulian Townsend Modified over 7 years ago

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Inverse Variation Function – A function that can be modeled with the equation y = k/x, also xy = k; where k does not equal zero.

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Inverse Variation Function - Graph

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Rational Functions - Asymptotes

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Rational Functions – Sketching the graph Draw all the asymptotes Determine where it is positive and negative Determine where it is Zero Sketch

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Rational Expressions – Multiplication / Division Restrictions – When the denominator is zero When dividing by zero Simplify by canceling like terms (factors)

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Complex Fractions – A fraction that has a fraction in the numerator or denominator

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Multiplying variables on both sides of an equal sign may introduce extraneous solutions. Check for extraneous solutions by plugging into the original equation.

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If rational functions are added in an equation, use the LCD to multiply all terms and “clear” the fraction

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9-5 Adding and Subtracting Rationals First Column 9-6 Solving Rational Expressions First Column End at #38

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9-5 Adding and Subtracting Rationals First Column

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