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This site helps you find the real zeros of polynomial functions using long division, synthetic division, and descartes' rule of signs.

A site full of many quizzes ranging from real numbers to logorithms. Each section has questions to answer then provides the solutions to double check your answers with.

This site defines the meaning of domain and range. It also shows how to find domain and range by looking at a function. It gives many examples and works the probelems. There is also a link for more domain and range problems on the page.