Unit 6: Periodic Functions and Trigonometry
Lesson 1: Exploring Periodic Data

1. Use the given graph. determine the period of the function.

A. 4
B. -2.5
C. 2
D. 8

For questions 2 and 3, determine whether the function is periodic. If it is, find the period.

2.

A. periodic; about 6
B. periodic; about 3
C. periodic; about 12
D. not periodic

3.

A. periodic; about 3
B. not periodic
C. periodic; about 2
D. periodic; about 1 1/2

4. Find the period and the amplitude of the periodic function.

A. 1; -1
B. 1; 0.5
C. 2; 0.5
D. 0.5; 2

5. the screen below shows the graph of a sound recorded on an oscilloscope. What are the period and the amplitude? (Each unit on the t-axis equals 0.01 seconds.)

A. 0.05 seconds; 4.5
B. 0.05 seconds; 9
C. 0.025 seconds; 9
D. 0.025 seconds; 4.5

Please help! I don't get this at all...

Unit 6 Periodic Functions and Trigonometry Lesson 1 Exploring Periodic Data 1 Use the given graph determine the period of the function A 4 B 25 C 2 D 8 For ques class=
Unit 6 Periodic Functions and Trigonometry Lesson 1 Exploring Periodic Data 1 Use the given graph determine the period of the function A 4 B 25 C 2 D 8 For ques class=
Unit 6 Periodic Functions and Trigonometry Lesson 1 Exploring Periodic Data 1 Use the given graph determine the period of the function A 4 B 25 C 2 D 8 For ques class=
Unit 6 Periodic Functions and Trigonometry Lesson 1 Exploring Periodic Data 1 Use the given graph determine the period of the function A 4 B 25 C 2 D 8 For ques class=
Unit 6 Periodic Functions and Trigonometry Lesson 1 Exploring Periodic Data 1 Use the given graph determine the period of the function A 4 B 25 C 2 D 8 For ques class=

Respuesta :

Answer:

#1) A. 4; #2) A. periodic; about 6; #3) B. not periodic; #4) C.  2; 0.5; #5) A. 0.05 seconds; 4.5.

Explanation:

#1)  The period of a function is essentially the amount of time it takes for the function to start all over and repeat itself.  In this function, at t = 0 the graph is at 1; it curves up, back down and begins again at y=1 when t=4.  This means the period goes from t=0 to t=4, so it is 4.

#2) Looking at the left side of the graph, specifically the peak at (-5, 2), we see the same peak at about (1, 2).  Following the graph after that we can see that it does indeed repeat itself; this means the period goes from t= - 5 to t = 1, so it is 6.

#3) This function never repeats, so it is not periodic.

#4) This function repeats when it reaches t=2, so 2 is the period.  The amplitude is the distance from the center line (of the graph, not the x-axis) to the peak.  The center line would be located at about y=0.5; the peaks are at y=-1.  This means the amplitude is 0.5.

#5) This function repeats every 0.05 seconds.  In this case, the center line is the x-axis; the distance from it to any peak is 4.5, so 4.5 is the amplitude.

For the periodic graph function period is distance traveled by it in the fixed time interval and amplitude is the one half of the difference between the maximum to minimum value.

  • 1. The period of the function of the graph 1 is 4 seconds.
  • 2.The period of the function of the graph 2 is about 6 seconds.
  • 3.The period of the function of the graph 3 is not periodic.
  • 4. The period and the amplitude of the periodic function shown in graph 4 is 2 seconds and 0.5 respectively.
  • 5.The period and the amplitude of the periodic function shown in graph 5 is 0.05 seconds and 4.5 respectively.

What is periodic function?

The periodic function is the function whose graph repeated itself at a fixed interval of time.

The period of the function is distance traveled by it in the fixed interval of time of periodic function.

The amplitude of the periodic function is the one half of the difference between the maximum to minimum value of graph.

  • 1. The period of the function of the graph 1- The graph one completes the one period in each 4 second (6-2, 10-6) and then repeats itself. Thus the period of the function of the graph 1 is 4 seconds.

  • 2.The period of the function of the graph 2-The graph two completes the one period in each about 6 second (look for -5 to +2) and then repeats itself. Thus the period of the function of the graph 2 is about 6 seconds.

  • 3.The period of the function of the graph 3-The graph three does not completes its cycle and never repeats itself. Thus graph 3 is not periodic.

  • 4. The period and the amplitude of the periodic function shown in graph 4-The graph four completes the one period in each about 2 second and then repeats itself. Thus the period of the function of the graph 2 is 2 seconds. The minimum value is -1 and maximum value is 0 of the graph. Thus, amplitude,

         [tex]a=\dfrac{0-(-1)}{2}\\a=0.5[/tex]

         Thus the amplitude is 0.5.

  • 5.The period and the amplitude of the periodic function shown in graph 5.The graph five completes the one period in each 0.05 second and then repeats itself. Thus the period of the function of the graph 2 is 0.05 seconds. The minimum value is -1 and maximum value is 0 of the graph. Thus, amplitude,    
  •  [tex]a=\dfrac{4.5-(-4.5)}{2}\\a=4.5[/tex]  
  • Thus the amplitude is
  • 4.5.

Hence,

  • 1. The period of the function of the graph 1 is 4 seconds.
  • 2.The period of the function of the graph 2 is about 6 seconds.
  • 3.The period of the function of the graph 3 is not periodic.
  • 4. The period and the amplitude of the periodic function shown in graph 4 is 2 seconds and 0.5 respectively.
  • 5.The period and the amplitude of the periodic function shown in graph 5 is 0.05 seconds and 4.5 respectively.

Learn more about the periodic function here;

https://brainly.com/question/8636691

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