Functions

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Focus on algebra II functions with these free worksheets, videos, and online tools. Whether you need practice graphing a cubic function, finding the domain of an inverse function, or just working through a tough polynomial, you'll find what you need here.
Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.

Gives a detailed explanation of how to use interval notation, followed by numerous examples, from very simple to quite complex.

A site with step by step tutorials on how to draw and graph a variety of mathematical functions

Online graphing calculator, useful for drawing out a function to visualize it or find key points.

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 3 of 7.

In this video, Salman Khan of Khan Academy explains parametric equations. Part 3 of 4.

In this video, Salman Khan of Khan Academy explains parametric equations. Part 2 of 4.

In this video, Salman Khan of Khan Academy explains parametric equations. Part 1 of 4.

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 5 of 7.

In this video, Salman Khan of Khan Academy explains parametric equations. Part 4 of 4.

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