# Piecewise functions

7 videos
3 skills
In this tutorial, we will get practice looking at wackier functions that are defined interval by interval (or piece by piece)!

### What is a function?

VIDEO 7:57 minutes
Functions assign a single unique output for each of their inputs. In this video, Sal gives many examples of various kinds of functions.

### Graphs of absolute value functions

VIDEO 8:34 minutes

### Absolute value graphing exercise example

VIDEO 3:12 minutes

### Graphs of absolute value functions

PRACTICE PROBLEMS

### Introduction to piecewise functions

VIDEO 3:49 minutes
Sal explains what a piecewise function is, and finds the formula of a piecewise function given its graph.

### How to graph a piecewise function (example)

VIDEO 4:30 minutes
Sal graphs a piecewise function given its formula. In this case, the function consists of three separate lines.

### Graphs of piecewise linear functions

PRACTICE PROBLEMS

### Matching expressions to define intervals of functions example

VIDEO 4:48 minutes

### Finding a piecewise function definition from graph

VIDEO 4:23 minutes

### Graphs of piecewise nonlinear functions

PRACTICE PROBLEMS