Find the period and the amplitude of the periodic function.
4; 2 *

Answer:
Choice A
Period = 4
Amplitude=2
Step-by-step explanation:
From the graph you can see that the graph of the function periodically repeats ecah 4 units. This means that the period of the function is T=4.
The range of the function is [-4,0]. The midpoint of the range is y=-2. When you draw the line =-2, you can see that the graph is 2 units above the line y=-2 and 2 units below the line y=-2. This means that the amplitude is 2.
The period and amplitude of the periodic function is 4 and 4 units respectively.
A periodic function is a function that repeats itself after every interval. The amplitude is the distance from the origin to its peak while the period is the time to complete one interval.
From the graph:
Period = 4 units, Amplitude = 4 units
The period and amplitude of the periodic function is 4 and 4 units respectively.
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