Section 1
Introduction to Functions
Book
Version 13
By Boundless
By Boundless
Boundless Algebra
Algebra
by Boundless
3 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/14595/raw/function-machine2.jpg)
Functions and Their Notation
A function maps a set of inputs onto a set of permissible outputs. Each input corresponds with one and only one output
![Thumbnail](../../../../../../figures.boundless-cdn.com/34754/square/uelm2z81sisua39plxcc.jpg)
Graphical Representations of Functions
Graphs are a great visual representation of functions, showing the relationship between the input and output values as lines or curves
![Thumbnail](../../../../../../figures.boundless-cdn.com/32701/square/dtqyydvbr5cmbxostwyg.jpg)
The Vertical Line Test
The vertical line test is used to determine whether a curve on an