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# Functions

## Evaluating functions

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!

## Inputs and outputs of a function

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

## Functions and equations

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

## Interpreting function notation

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

## Maximum and minimum points

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

## Intervals where a function is positive, negative, increasing, or decreasing

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

## Interpreting features of graphs

Practice
Graph interpretation word problemsGet 3 of 4 questions to level up!

## Average rate of change

Practice
Average rate of change: graphs & tablesGet 3 of 4 questions to level up!
Average rate of changeGet 3 of 4 questions to level up!

## Average rate of change word problems

### About this unit

Functions are mathematical entities that assign unique outputs to given inputs. Sounds simple? Think again! In this topic you will evaluate, graph, analyze, and create various types of functions.