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 ...

Data can be presented in many ways that make it quicker and easier to read. In this section we will look at some of these ways. It is important to choose the best way to present data. A line graph can ...

Due to the proprietary methodology and the volume of correspondence we receive, we are unable to respond to questions about the rate index. The following list attempts to answer the most common ...

Gold and silver are under renewed pressure to start the week, extending last week's sharp losses as traders continue to favor the U.S. dollar and brace for higher interest rates.