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# Unit 8: Functions

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## About this unit

In this unit, we learn about functions, which are mathematical entities that assign unique outputs to given inputs. We'll evaluate, graph, analyze, and create various types of functions.

### Learn

### Practice

- Evaluate functionsGet 3 of 4 questions to level up!
- Evaluate functions from their graphGet 3 of 4 questions to level up!
- Evaluate function expressionsGet 3 of 4 questions to level up!

### Learn

### Practice

- Function inputs & outputs: equationGet 3 of 4 questions to level up!
- Function inputs & outputs: graphGet 3 of 4 questions to level up!

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

### Practice

- Function rules from equationsGet 3 of 4 questions to level up!

### Learn

### Practice

- Function notation word problemsGet 3 of 4 questions to level up!

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

### Learn

### Practice

- Identifying values in the domainGet 3 of 4 questions to level up!
- Determine the domain of functionsGet 3 of 4 questions to level up!
- Function domain word problemsGet 3 of 4 questions to level up!

### Learn

### Practice

- Recognize functions from graphsGet 3 of 4 questions to level up!
- Recognize functions from tablesGet 3 of 4 questions to level up!

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

### Learn

### Practice

- Relative maxima and minimaGet 3 of 4 questions to level up!
- Absolute maxima and minimaGet 3 of 4 questions to level up!

### Learn

### Practice

- Positive and negative intervalsGet 3 of 4 questions to level up!
- Increasing and decreasing intervalsGet 3 of 4 questions to level up!

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

### Learn

### Practice

- Evaluate inverse functionsGet 3 of 4 questions to level up!
- Finding inverses of linear functionsGet 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 2,200 Mastery points!