1. EQUATIONS & INEQUALITIES
Math 3 Hon: Unit 4
SOLVING RATIONAL
EQUATIONS & INEQUALITIES
Method #1 - Set up proportion
Method #2 - Multiply by LCD of all terms
METHOD 1: PROPORTION  Cross Multiply
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Math 3 Hon: Unit 4

2. Method 1: Proportion PRACTICE
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3. #6)
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4. #7)
Math 3 Hon: Unit 4

5. METHOD 2 - MULTIPLY BY LCD
LCD = Least Common Denominator
“Cancels out all fractions to make normal equation to solve” a) b)

6. c) d)

7. #1)
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8. #3)
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9. Extraneous Solutions: algebraic solution creates a zero denominator in original

10. EX 2)

11. Solving RATIONAL INEQUALITIES
(1) Find any excluded values (2) Solve as a rational equation.
(3) Test values on different domains between excluded and solution values to solve.
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12. #3)
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