Business An article in the Wall Street Journal on March 17, 2012 spoke of the increase in...

Business An article in the Wall Street Journal on March 17, 2012 spoke of the increase in production of pipe tobacco as stores and consumers found that pipe tobacco is often not subject to the same taxes as cigarette tobacco. The graph below shows the production of pipe tobacco (in millions of pounds) and of roll-your-own tobacco (in millions of pounds). (Data from: Alcohol and Tobacco Tax and Trade Bureau.) (See Examples.)

In what year did both roll-your-own tobacco and pipe tobacco have approximately the same level of production? How much was produced for each?

Example 1

Finance Newspapers and websites summarize activity of the S&P 500 Index in graphical form. The results for the 20 trading days for the month of December, 2012 are displayed in Figure 2.7 . The first coordinate of each point on the graph is the trading day in December, and the second coordinate represents the closing price of the S&P 500 on that day.

Example 2

Business Monthly revenue and costs for the Webster Cell Phone Company are determined by the number t of phones produced and sold, as shown in Figure 2.