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Khan Academy
Khan Academy: Algebra: Introduction to Functions
Video giving a general overview of the concept of a function by discussing inputs and outputs. Shows function notation, an example of a piece-wise function and how to evaluate at certain points as well as how to evaluate a composition of...
Khan Academy
Khan Academy: Connection Between Even and Odd Numbers and Functions
Learn about the possible reason why even functions are called "even" and odd functions are called "odd".
Sophia Learning
Sophia: Application of Percent of Change
Here we look at how to apply percent of change in a real world situation through the use of a word problem.