Question: The temperature-humidity index I (or humidex,
The temperature-humidity index I (or humidex, for short) is the perceived air temperature when the actual temperature is T and the relative humidity is h, so we can write I = f (T, h). The following table of values of I is an excerpt from a table compiled by the National Oceanic & Atmospheric Administration. Table 3 Apparent temperature as a function of temperature and humidity Table 3: 
(a). What is the value of f (95, 70)? What is its meaning? (b). For what value of h is f (90, h) = 100? (c). For what value of T is f (T, 50) = 88? (d). What are the meanings of the functions I = f (80, h) and I = f (100, h)? Compare the behavior of these two functions of h.
Transcribed Image Text:
Relative humidity (%) h T 20 30 40 50 60 70 80 77 78 79 81 82 83 90 93 85 82 84 86 88 90 87 90 93 96 100 106 95 93 96 101 107 114 124 100 99 104 110 120 132 144 Actual temper ature (°F)
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