# Patterns and Linear Functions

This video shows how patterns in function charts give you different values. Linear functions are where the function output changes at a constant rate, relative to the input.

An example of this would be the function:
$y = 4x$
$y = 4(1) = 4$
$y = 4(2) = 8$
$y = 4(3) = 12$
This function increases at a constant rate, as the input increases or decreases at a constant rate.

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Used by students across the country. Pre-Algebra, Algebra I, Geometry, & Algebra II