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Select the correct answer.
A homeowners' association monitored the number of households in a neighborhood using their sprinkler systems during certain hours. This graph
shows the information recorded for two days.
Number of Households
Water Sprinkler Usage
250
225
200
175
150
125
100
75
KUNOKOYE 00:
50
25
7:00 a.m.
11:00 a.m.
3:00 p.m.
7:00 p.m.
11:00 p.m.
3:00 a.m.
7:00 a.m.
11:00 a.m.
3:00 p.m.
7:00 p.m.
11:00 p.m.
3:00 a.m.
Time of Day
The function describing this graph is a transformation of the parent cosine function, y = cos(x).
Which value best describes the period of the transformed function?
O A.
O B.
12 hours
24 hours
○ C.
18 hours
D.
16 hours