👉 Learn how to graph the reciprocal function. A reciprocal function is a rational function whose expression of the variable ...

👉 Learn how to graph exponential functions in base e. An exponential function is a function whose value increases rapidly. e ...

Plotting a graph takes time. Often mathematicians just want to know the key features. These are: shape, location and some key points (such as where the graph crosses the axes or turning points).