The slope of the orange line between points A and Bis V , and the slope of the blue \\ine between points C and Dis V. The mathematical slope of the steeper line is V the slope of the lesssteep line. Because different cities are located in different climates, the relationship between hours of sunlight and average temperature may vary. The following graph shows the relationship between average temperature and hours of sunlight in two cities located in two very different climates. 100 12, 90 90 80 70 D 60 AVERAGE TEMPERATURE (Degrees Fahrenheit) 50 A 40 30 C 20 10 0 2 4 6 8 10 12 14 16 18 20 SUNLIGHT (Hours per day)