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-2/A person who was listening to a siren reported that the frequency of the sound changed with time, measured in seconds. The minimum frequency heart was 200 Hz, and the maximum frequency was 1200 Hz. The minimum frequency occurred att-0 andt - 18. The person also reported that, in 18 seconds, she heard the minimum frequency seven times (including the times at t-0 and t = 18). a) Determine an equation of a positive cosine function, f(t) that describes the frequency of this siren over time t. b) If we were to determine the equation of a negative sine function instead for part a), what would the phase shift be? Keep your answer as an exact value.

-2/A person who was listening to a siren reported that the frequency of the sound changed with time, measured in seconds. The minimum frequency heart was 200 Hz, and the maximum frequency was 1200 Hz. The minimum frequency occurred att-0 andt - 18. The person also reported that, in 18 seconds, she heard the minimum frequency seven times (including the times at t-0 and t = 18). a) Determine an equation of a positive cosine function, f(t) that describes the frequency of this siren over time t. b) If we were to determine the equation of a negative sine function instead for part a), what would the phase shift be? Keep your answer as an exact value.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.6: Variation
Problem 7E
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Do question b) only. 

- 2/A person who was listening to a siren reported that the frequency of the sound changed with time, measured in seconds. The minimum frequency heart was 200 Hz. and the maximum frequency was 1200 Hz. The minimum frequency ocurred at t-0 and t - 18. The person also reported that, in 18 seconds, she heard the minimum frequency seven times (including the times at t-0 and t = 18). a) Determine an equation of a positive cosine function, f(t), that describes the frequency of this siren over time t. b) If we were to determine the equation of a negative sine function instead for part a). what would the phase shift be? Keep your answer as an exact value.
Transcribed Image Text:- 2/A person who was listening to a siren reported that the frequency of the sound changed with time, measured in seconds. The minimum frequency heart was 200 Hz. and the maximum frequency was 1200 Hz. The minimum frequency ocurred at t-0 and t - 18. The person also reported that, in 18 seconds, she heard the minimum frequency seven times (including the times at t-0 and t = 18). a) Determine an equation of a positive cosine function, f(t), that describes the frequency of this siren over time t. b) If we were to determine the equation of a negative sine function instead for part a). what would the phase shift be? Keep your answer as an exact value.
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