1. You are on the beach in Wasaga Beach, Ontario. At 2:00 PM on June 15th, the tide is high. At that time you find that the depth at the end of the pier is 1.5 meters. At 8:00 pm the same day, the tide is low, and you find that the depth of the water is 1.1 meters. Assuming the depth of the water varies sinusoidally with time: a) Identify the key features of the sinusoidal function, and use them to sketch a graph showing two tide cycles. b) Determine an equation to represent the tide in Wasaga Beach. c) Determine the height of the water at 11:00 PM the same day.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 64E
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Thinking
1. You are on the beach in Wasaga Beach, Ontario, At 2:00 PM on June
15th, the tide is high. At that time you find that the depth at the end of the
pier is 1.5 meters. At 8:00 pm the same day, the tide is low, and you find
that the depth of the water is 1.1 meters. Assuming the depth of the water
varies sinusoidally with time:
a) Identify the key features of the sinusoidal function, and use them to
sketch a graph showing two tide cycles.
b) Determine an equation to represent the tide in Wasaga Beach.
c) Determine the height of the water at 11:00 PM the same day.
d) Determine the first two times after high tide where the height of the water
is 1.2 metres.
2. For the function identified below:
a) state the key features for one cycle of the transformed function.
b) identify the transformations being applied to the base function y = sinr,
c) sketch the transformed function.
f(r) = -sin(2(r - 45)) – 3
Communication
1. Your friend attempted to graph the
- 60
+ 3
Based on their graph of the parent
f(x) = -2cos
equation
function (solid), and the transformed function (dashed) below, describe
which transformations have been applied correctly, and which have not.
Justify your answer.
Transcribed Image Text:1 of 2 Thinking 1. You are on the beach in Wasaga Beach, Ontario, At 2:00 PM on June 15th, the tide is high. At that time you find that the depth at the end of the pier is 1.5 meters. At 8:00 pm the same day, the tide is low, and you find that the depth of the water is 1.1 meters. Assuming the depth of the water varies sinusoidally with time: a) Identify the key features of the sinusoidal function, and use them to sketch a graph showing two tide cycles. b) Determine an equation to represent the tide in Wasaga Beach. c) Determine the height of the water at 11:00 PM the same day. d) Determine the first two times after high tide where the height of the water is 1.2 metres. 2. For the function identified below: a) state the key features for one cycle of the transformed function. b) identify the transformations being applied to the base function y = sinr, c) sketch the transformed function. f(r) = -sin(2(r - 45)) – 3 Communication 1. Your friend attempted to graph the - 60 + 3 Based on their graph of the parent f(x) = -2cos equation function (solid), and the transformed function (dashed) below, describe which transformations have been applied correctly, and which have not. Justify your answer.
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ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage