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# Unit 6: Rational relationships

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## About this unit

Rational expressions are like fractions, but instead of integers in the numerator and the denominator, you have variable expressions! Learn how to work with such expressions. Namely, simplify, add, subtract, multiply, and divide them (much like fractions!). Then, solve some equations with rational expressions in them, and analyze the behavior of rational functions.### Learn

### Practice

- Reduce rational expressions to lowest terms: Error analysisGet 3 of 4 questions to level up!
- Reduce rational expressions to lowest termsGet 3 of 4 questions to level up!
- Simplify rational expressions (advanced)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Multiply & divide rational expressions: Error analysisGet 3 of 4 questions to level up!
- Multiply & divide rational expressionsGet 3 of 4 questions to level up!
- Multiply & divide rational expressions (advanced)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Add & subtract rational expressions: like denominatorsGet 3 of 4 questions to level up!
- Add & subtract rational expressions (basic)Get 3 of 4 questions to level up!
- Least common multipleGet 3 of 4 questions to level up!
- Add & subtract rational expressions: factored denominatorsGet 3 of 4 questions to level up!
- Add & subtract rational expressionsGet 3 of 4 questions to level up!

### Practice

- Nested fractionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Rational equations introGet 3 of 4 questions to level up!
- Rational equations (advanced)Get 3 of 4 questions to level up!
- Rational equationsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Recognize direct & inverse variationGet 3 of 4 questions to level up!

### Practice

- End behavior of rational functionsGet 3 of 4 questions to level up!

### Learn

### Practice

- Rational functions: zeros, asymptotes, and undefined pointsGet 3 of 4 questions to level up!
- Analyze vertical asymptotes of rational functionsGet 3 of 4 questions to level up!

### Learn

### Practice

- Graphs of rational functionsGet 3 of 4 questions to level up!

### Learn

Level up on the above skills and collect up to 400 Mastery points

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Level up on all the skills in this unit and collect up to 2000 Mastery points!