To read this graph, start by looking at the title and labels. The title tells you what the graph is about, and the labels on the axes show you what is being measured. Once you understand the labels, look at the data points. These are the dots or bars that represent the information. You can compare the data points to see how the values change over time or in relation to each other.As you scroll your mouse over the various data points, you will learn about the different stimulants that are being combined with opioids and the number of deaths from these lethal combinations that have been reported since 2012. The second graph depicts methamphetamines and cocaine and their involvement in opioid-related deaths.