If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

# Unit: Functions

Not feeling ready for this? Check out Get ready for Algebra 1.

#### 0

Possible mastery points

## 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!

#### Quiz 1

Level up on the above skills and collect up to 500 Mastery points

## 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!

## Introduction to the domain and range of a function

#### Quiz 2

Level up on the above skills and collect up to 300 Mastery points

## Recognizing functions

#### Quiz 3

Level up on the above skills and collect up to 500 Mastery points

## 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!

#### Quiz 4

Level up on the above skills and collect up to 500 Mastery points

## Intro to inverse functions

Practice
Evaluate inverse functionsGet 3 of 4 questions to level up!
Finding inverses of linear functionsGet 3 of 4 questions to level up!

#### Quiz 5

Level up on the above skills and collect up to 400 Mastery points
Up next for you:

#### Unit test

Level up on all the skills in this unit and collect up to 2200 Mastery points!