Sure, here's the revised description without the link: --- Subscribe! Welcome, ladies and gentlemen. So what I'd like to do ...

Certainly! Here's the new description with all links and additional text removed: Welcome, ladies and gentlemen. So, what I'd like to do is show you how to graph a quadratic in vertex form when it's ...

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).

An equation of the form \(y = mx + c\) where \(m\) and \(c\) are numbers, gives a straight line when values of \(x\) and corresponding values of \(y\) are plotted on a grid. A straight line is a ...