The correct statements regarding the function are:
2. The period of the function is [tex]2\pi[/tex].
4. The amplitude of the function is 2.5.
5. The midline of the function is y = 1.5.
What is the amplitude of a function?
The amplitude of a function is half the difference between the largest and the smallest value.
In this problem, these values are of 4 and -1, hence the amplitude is:
A = (4 - (-1))/2 = 2.5.
Thus the midline is:
y = -1 + 2.5 = 4 - 1.5 = 2.5.
What is the period of a function?
The period of a function is the distance between it's repetitions. Hence, for this graph, the period is of [tex]2\pi[/tex].
More can be learned about functions at https://brainly.com/question/16818112
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