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Introduction to Functions
Seven Elementary Functions and Their Graphs

In math we often encounter certain elementary functions. These elementary functions include rational functions, exponential functions, basic polynomials, absolute values and the square root function.
It is important to recognize the graph of elementary functions, and to be ablo to graph them ourselves. This will be specially useful when doing transformations.

 f(x)=x f(x)=|x| f(x)=x2 f(x)=x3 $\sqrt{x}$ f(x)=2x $\frac{1}{x}$