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# Unit 4: Rational functions

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## About this unit

Divide one polynomial by another, and what do you get? A rational function! We'll analyze the family of rational functions, and we'll see some examples of how they can be useful in modeling contexts.### 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!

### Practice

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

### Practice

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

### Learn

### Practice

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

### Learn

### Practice

- Mixtures and combined rates word problemsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 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!

### Learn

### Practice

- Add & subtract rational expressions (basic)Get 3 of 4 questions to level up!
- Add & subtract rational expressionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

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Level up on all the skills in this unit and collect up to 1000 Mastery points!