Ava Williams has been teaching for more than 30-years. Ask her why she’s stuck with it so long, and she’ll have you a very simple but very profound answer. “I ...

Plotted points on a graph are referred to as coordinates. Coordinates are pair of numbers written in the form \(({x},~{y})\) where \({x}\) is the amount moved horizontally, and \({y}\) the amount ...