A function is a rule that is applied to one set of values to give another set of values. A function can be illustrated on a graph – points are plotted as coordinates and joined by either a straight ...

In this math tutorial, we look at a common mistake when dealing with horizontal shift in quadratic function graphing. We explore how to correctly interpret the direction of transformations of ...

Below is the graph of a quadratic function, showing where the function is increasing and decreasing. If we draw in the tangents to the curve, you will notice that if the gradient of the tangent is ...