The speed of sound in air changes with the temperature. When the temperature 7 is 32 degrees Fahrenheit, the speed S of sound is 1087.5 feet per second. For each degree increase in temperature, the speed of sound increases by 1.1 feet per second. (Round your answers to two decimal places.) (a) Explain why speed S is a linear function of temperature T. Because S always increases by 1.1 when 7 increases by ,Shas a constant rate of change and is a linear function of T. Identify the slope of the function. (b) Use a formula to express S as a linear function of T. (c) Solve for 7 in the equation from part (b) to obtain a formula for temperature T as a linear function of speed S.

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The speed of sound in air changes with the temperature. When the temperature 7 is 32 degrees Fahrenheit, the speed S of sound is 1087.5 feet per second. For each degree increase in temperature, the speed of sound increases by 1.1 feet per second. (Round your answers to two
decimal places.)
(a) Explain why speed S is a linear function of temperature 7.
Because S always increases by 1.1 when 7 increases by
1, s has a constant rate of change and is a linear function of 7.
Identify the slope of the function.
(b) Use a formula to express S as a linear function of 7T.
(c) Solve for 7 in the equation from part (b) to obtain a formula for temperature 7 as a linear function of speed S.
T =
(d) Explain in practical terms the meaning of the slope of the function you found in part (c).
The slope of 7 as a linear function of S is
, and this means that an increase in the speed of sound by 1 foot per second corresponds to an increase of
degree in temperature.
Transcribed Image Text:The speed of sound in air changes with the temperature. When the temperature 7 is 32 degrees Fahrenheit, the speed S of sound is 1087.5 feet per second. For each degree increase in temperature, the speed of sound increases by 1.1 feet per second. (Round your answers to two decimal places.) (a) Explain why speed S is a linear function of temperature 7. Because S always increases by 1.1 when 7 increases by 1, s has a constant rate of change and is a linear function of 7. Identify the slope of the function. (b) Use a formula to express S as a linear function of 7T. (c) Solve for 7 in the equation from part (b) to obtain a formula for temperature 7 as a linear function of speed S. T = (d) Explain in practical terms the meaning of the slope of the function you found in part (c). The slope of 7 as a linear function of S is , and this means that an increase in the speed of sound by 1 foot per second corresponds to an increase of degree in temperature.
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