Section 3.1 Equations and the Rectangular Coordinate System 201 5b. The following bar graph shows the amount of money spent, in millions, on Google ads for the top 10 companies in June 2010. (Source: www.adage.com) Money Spent on Google Ads, in Millions, June 2010 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Millions 2.19 5.85 6.67 8.08 3.59 4.25 5.95 3.30 2.46 2.29 ADT Security Amazon Apollo Group AT&T Mobility BP Corp eBay Expedia Hotels.com JC Penney Living Social i. Write ordered pairs for this bar graph, where x is the company and y is the money spent on advertising, in millions. ii. Which company spent the most money on Google ads in June 2010? How much was spent? iii. Which company spent the least money in Google ads in June 2010? How much was spent? iv. What was the total amount of money spent on Google ads for these companies in June 2010? Solution 5b. i. The ordered pairs corresponding to the given data are (ADT Security, 2.19), (Amazon, 5.85), (Apollo Group, 6.67), (AT&T Mobility, 8.08), (BP Corp, 3.59), (eBay, 4.25), (Expedia, 5.95), (Hotels.com, 3.30), (JC Penney, 2.46), and (Living Social, 2.29). ii. The company that spent the most on Google ads was AT&T Mobility, since the horizontal bar is the longest for this company. AT&T Mobility spent $8.08 million. iii. The company that spent the least on Google ads was ADT Security since this horizontal bar is the shortest. ADT Security spent $2.19 million. iv. The total spent on Google ads for these 10 companies in June 2010, was 2.19 + 5.85 + 6.67 + 8.08 + 3.59 + 4.25 + 5.95 + 3.30 + 2.46 + 2.29 = $44.63 million. 5c. The line graph shows the average cost, in millions, of a 30-sec Super Bowl ad for the years 2002–2010. (Sources: http://www.huffingtonpost.com/2010/01/11/ super-bowl-commercial-pri_n_418245.html and www.marketingcharts.com) 2002 2003 2004 2005 2006 2007 2008 2009 2010 3.1 3 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2 Average Cost of a 30-sec Super Bowl Ad, in Millions (2002–2010)
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