If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

To help draw a straight line graph from its equation, fill in a table of 𝑥 and 𝑦 values. Plot the pairs of values as coordinates and join to make a line. Make sure you are confident with ...

Microsoft Excel can present two series of data points together on the horizontal axis, but if the number scale for each series dramatically differs, the data will not be readable. Using a two-sided ...

Whatever you think of the nut graph, it has certainly earned a hallowed place in the news writing hall of fame. Among its many contributions, the nut graph has liberated a generation of journalists ...

The annual murder counts in New York State and New York City appear in Figure 1. Suppose we are interested in the number of murders in New York State but outside of New York City. We could find that ...