Data about the sound levels from a new speaker are collected at a manufacturing facility and are used to calculate the model ŷ = 62.4(0.915)x, where x represents the distance from the speaker in meters and ŷ represents the predicted sound level in decibels. Interpret the percent rate of change of the model in the context of the problem.  For every increase in one meter from the speaker, the sound level is predicted to decrease by about 91.5%.  For every increase in one meter from the speaker, the sound level is predicted to decrease by about 8.5%.  For every increase in one meter from the speaker, the sound level is predicted to increase by about 91.5%.  For every increase in one meter from the speaker, the sound level is predicted to increase by about 8.5%.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 6ECP: The resistance of a copper wire carrying an electrical current is directly proportional to its...
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Data about the sound levels from a new speaker are collected at a manufacturing facility and are used to calculate the model ŷ = 62.4(0.915)x, where represents the distance from the speaker in meters and ŷ represents the predicted sound level in decibels. Interpret the percent rate of change of the model in the context of the problem.

 For every increase in one meter from the speaker, the sound level is predicted to decrease by about 91.5%. 

For every increase in one meter from the speaker, the sound level is predicted to decrease by about 8.5%. 

For every increase in one meter from the speaker, the sound level is predicted to increase by about 91.5%. 

For every increase in one meter from the speaker, the sound level is predicted to increase by about 8.5%.

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