
Concept explainers
In Example 2 we considered the function W = f(T, v), where W is the wind-chill index, T is the actual temperature, and v is the wind speed. A numerical representation is given in Table 1 on page 889.
(a) What is the value of f(−15.40)? What is its meaning?
(b) Describe in words the meaning of the question “For what value of o is f(−20, v) = −30?” Then answer the question.
(c) Describe in words the meaning of the question “For what value of T is f(T, 20) = −49?” Then answer the question.
(d) What is the meaning of the function W = f(−5, v)? Describe the behavior of this function.
(e) What is the meaning of the function W = f(T, 50)? Describe the behavior of this function.
Table 1 Wind-chill index as a function of air temperature and wind speed

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Chapter 14 Solutions
Bundle: Multivariable Calculus, 8th + WebAssign Printed Access Card for Stewart's Calculus, 8th Edition, Single-Term
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