If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

In this video, we provide essential "math help" by explaining how to "graph" functions, beginning with a basic cosine wave and then moving on to a piecewise function. This "math tutorial" demonstrates ...

Learn how to determine the domain and range of a function given the graph of the function. Since the domain of a function is the set of all x-values we will want to identify how far left the graph ...