The data in the table shows a sinusoidal relationship between the number of seconds an object has been moving

and its velocity v (x), measured in centimeters per second.

X

10

20 30 40 50 60

70

80

90 100 110 120

v(x)

x)

65.9

49.9

30.1

14.1

8

14.1

30.1

49.9

65.9 72 65.9 49.9

What is true of the cosine function that models the data in the table?

Drag a value into each box to correctly complete the statements.