http://www.freemathvideos.com In this video playlist you will learn all about functions for pre-calculus. We will take a look at continuity of functions by determining holes, asymptotes, domain and range. We will then learn how to determine if a function is even, odd, increasing, decreasing, constant, extrema and if or how the function is bounded. Lastly we will look at piecewise functions and learn how to evaluate, as well as graph.
f(x) = 4/(x^2 + 1)
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