Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative. If ...

Plotting over actual images links math lessons with real-world relevance. A new graphing calculator from Casio lets students plot mathematical equations on top of real-life images and user-uploaded ...