Which of the following would best represent a cosine function with an amplitude of 3, a period of pi over 2, and a midline at y = - 4?
f (x) = - 4 cos 4x + 3
f (x) = 3 cos (x - pi over 2) - 4
f (x) = 4 cos (x - pi over 2) + 3
f (x) = 3 cos 4x - 4
+5
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Home » Mathematics » Which of the following would best represent a cosine function with an amplitude of 3, a period of pi over 2, and a midline at y = - 4? f (x) = - 4 cos 4x + 3 f (x) = 3 cos (x - pi over 2) - 4 f (x) = 4 cos (x - pi over 2) + 3 f (x) = 3 cos 4x - 4