Many real-life situations can be modeled by sine and cosine functions. The table below shows the depth of water (in feet) at the end of a wharf as it varies with the tides at different times during the morming. t (time) midnight 2AM. 4AM. 6AM. BAM. 10 AM. p(depth) 5.76 8.16 12.16 14.08 12.16 8.16 7.26 a) Using Geogebra or any other software, plot the given data and use regression to find the equation of the Trigonometric Function you obtained. Write it in function form. b) Find the amplitude from the given equation. What does the amplitude represent in this problem. c) Find the period from the given equation. What does the period represent? d) If the high tide occurred at 4 A.M, based on your previous answer, what is the nearest time that it will occur again?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Part 3: Modeling Periodic phenomena with trigonometric functions:
Many real-life situations can be modeled by sine and cosine functions. The table below shows
the depth of water (in feet) at the end of a wharf as it varies with the tides at different times
during the moming.
E (time)
midnight 2AM.
4 AM.
6AM.
SAM.
10 AM.
noos
p(depth)
5.76
7.26
8.16
12.16
14.08
12.16
8.16
a) Using Geogebra or any other software, plot the given data and use regression to find the
equation of the Trigonometric Funetion you obtained. Write it in function form.
b) Find the amplitude from the given cquation. What does the amplitude represent in this
problem.
c) Find the period from the given equation. What does the period represent?
d) If the high tide occurred at 4 A.M, based on your previous answer, what is the nearest
time that it will occur again?
Transcribed Image Text:Part 3: Modeling Periodic phenomena with trigonometric functions: Many real-life situations can be modeled by sine and cosine functions. The table below shows the depth of water (in feet) at the end of a wharf as it varies with the tides at different times during the moming. E (time) midnight 2AM. 4 AM. 6AM. SAM. 10 AM. noos p(depth) 5.76 7.26 8.16 12.16 14.08 12.16 8.16 a) Using Geogebra or any other software, plot the given data and use regression to find the equation of the Trigonometric Funetion you obtained. Write it in function form. b) Find the amplitude from the given cquation. What does the amplitude represent in this problem. c) Find the period from the given equation. What does the period represent? d) If the high tide occurred at 4 A.M, based on your previous answer, what is the nearest time that it will occur again?
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