It can take two columns of numbers and show a pictorial representation of how they relate to each other through a graph. You can create this graph with just a couple of clicks and then rely on ...

One of the advantages of using Excel as your spreadsheet application is that you can display a simple piece of information just as effectively as a complicated collection of data. For instance ...

A straight line is a linear graph. A quadratic graph has an equation which includes an \(x^{2}\) term. Examples of equations that form quadratic graphs: \(y = x^{2}\) \(y = 3x^{2} + 2x – 5\) \(y ...

Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. This article is more than 10 years old. This week I invited a guest ...

If \(f(x) = x^2\), then \(af(x) = a(x^2)\). This tells us that we need to multiply each of the \(y\) coordinates on the graph by \(a\) in order to stretch the original graph. Looking at some ...