91 GRAPHING RATIONAL FUNCTIONS

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9-1 GRAPHING RATIONAL FUNCTIONS

• Define (Review)
• Rational Function
• Excluded Values
• Asymptotes

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• B. Finding Asymptotes
• Excluded Values are the vertical asymptotes
• Horizontal asymptotes are found in the value
  table
• C. Graphing Rational Function
• Make a value table Graph

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D. Examples
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9-2 DIRECT, INVERSE, JOINT VARIATION

• Define
• Constant of variation
• Direct variation
• Inverse variation
• Joint variation

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What would happen here?
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9-3 MULTIPLING AND DIVIDING RATIONAL FUNCTIONS

• Review Fractions
• B. Steps for multiplication
• Factor all polynomials
• Cross cancel
• Multiply

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• C. Examples

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• D. Steps for division
• Multiply by reciprocal (flip flop)
• Simplify
• E. Examples

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9-4 ADDING AND SUBTRACTING RATIONAL EXPRESSIONS

• Review fractions
• Steps
• Get common denominators
• Add or subtract numerators (top)
• Denominators stay the same
• Reduce

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• C. Find LCD
• Factor
• Use each factor
• D. Examples

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• E. Examples

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9-5 SOLVING RATIONAL EQUATIONS

• Review solving

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• B. Steps
• Find LCM
• Multiply both sides by LCM
• Solve
• Check

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C. Examples