Welcome to Engaging Algebra

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Videos for Functions in General

3.5 Describing Functions 

These videos practice discussing domain, range, increasing, decreasing, where y is positive or negative, how to find a "y" given an "x" and how to find any "x's" given a "y".

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3.6 Operations with Functions

These videos practice adding, subtracting, multiplying and evaluating functions.

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3.6 Working with the Difference Quotient

These videos explains how to correctly use the difference quotient.

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Rational function

3.7 Composition of Functions

 These videos practice finding the composition of functions.

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3.7 Inverse Function

The first video explains the idea of an inverse.  The second function discusses the idea idea of a 1-1 function and how to build an inverse function.  The remaining videos practice verifing a graph is the graph of a 1-1 function, finding an inverse function for 1-1 functions and using composition to verify the function is an inverse.

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