gie Learning, Inc. E JOURNAL LESSON 1 ASSIGNMENT > Use a separate piece of paper for your Journal entry. Describe the relationship between the amplitude and midline of a periodic function in your own words. REMEMBER A periodic function is a function whose values repeat over regular intervals. The period of a periodic function is the length of the smallest interval over which the function repeats. PRACTICE Wind turbines harness the power of the wind to generate electricity. One particular wind turbine consists of three 100-foot-long rotor blades that rotate around the top of a 150-foot vertical shaft. Use a protractor, a straightedge, and the given graph to estimate the height of the blade tip when the blade is at angles of 0, 30°, 45°, 60° and 90°. The arc on the graph represents a portion of the blade tip's path. Assume the blade rotates counterclockwise and the blade is at an angle of 0 when the blade tip is directly to the right of the top of the vertical shaft. This position is 0° on the graph. Blade Tip Height (feet) YA 240- 230- 220 210 200 190 180- 170- 160- 150 0 Joº 100 ft 150 ft 20 40 60 80 Horizontal Position of Blade Tip (feet) Complete the table using your knowledge of the symmetry of circles. Blade Angle Tip Height (feet) 120 135 150 180 210 225 240 270 300 315 330 Go to LiveHint.com for help on the PRACTICE questions. Lesson 1 > A Sense of Déjà Vu 761
gie Learning, Inc. E JOURNAL LESSON 1 ASSIGNMENT > Use a separate piece of paper for your Journal entry. Describe the relationship between the amplitude and midline of a periodic function in your own words. REMEMBER A periodic function is a function whose values repeat over regular intervals. The period of a periodic function is the length of the smallest interval over which the function repeats. PRACTICE Wind turbines harness the power of the wind to generate electricity. One particular wind turbine consists of three 100-foot-long rotor blades that rotate around the top of a 150-foot vertical shaft. Use a protractor, a straightedge, and the given graph to estimate the height of the blade tip when the blade is at angles of 0, 30°, 45°, 60° and 90°. The arc on the graph represents a portion of the blade tip's path. Assume the blade rotates counterclockwise and the blade is at an angle of 0 when the blade tip is directly to the right of the top of the vertical shaft. This position is 0° on the graph. Blade Tip Height (feet) YA 240- 230- 220 210 200 190 180- 170- 160- 150 0 Joº 100 ft 150 ft 20 40 60 80 Horizontal Position of Blade Tip (feet) Complete the table using your knowledge of the symmetry of circles. Blade Angle Tip Height (feet) 120 135 150 180 210 225 240 270 300 315 330 Go to LiveHint.com for help on the PRACTICE questions. Lesson 1 > A Sense of Déjà Vu 761
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.5: Graphs Of Functions
Problem 44E
Related questions
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Transcribed Image Text:gie Learning, Inc.
E
JOURNAL
LESSON 1 ASSIGNMENT
> Use a separate piece of paper for your Journal entry.
Describe the relationship
between the amplitude and
midline of a periodic function in
your own words.
REMEMBER
A periodic function is a function whose values repeat
over regular intervals. The period of a periodic function
is the length of the smallest interval over which the
function repeats.
PRACTICE
Wind turbines harness the power of the wind to
generate electricity.
One particular wind turbine consists of three
100-foot-long rotor blades that rotate around
the top of a 150-foot vertical shaft.
Use a protractor, a straightedge, and the given graph to
estimate the height of the blade tip when the blade is at
angles of 0, 30°, 45°, 60° and 90°. The arc on the graph
represents a portion of the blade tip's path. Assume the
blade rotates counterclockwise and the blade is at an
angle of 0 when the blade tip is directly to the right of the top of the vertical shaft.
This position is 0° on the graph.
Blade Tip Height (feet)
YA
240-
230-
220
210
200
190
180-
170-
160-
150
0
Joº
100 ft
150 ft
20 40 60 80
Horizontal Position
of Blade Tip (feet)
Complete the table using your knowledge of the symmetry of circles.
Blade
Angle
Tip Height
(feet)
120 135 150 180 210 225 240 270 300 315 330
Go to LiveHint.com for help
on the PRACTICE questions.
Lesson 1 > A Sense of Déjà Vu
761
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