SOLUTION: Determine the amplitude and the period in radians of the function. y = 1.4 cos 0.6θ

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Question 1204955: Determine the amplitude and the period in radians of the function.
y = 1.4 cos 0.6θ
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!


y+=+1.4cos%280.6theta%29
recall:
y+=+A%2Acos%28B%28x+%2B+C%29%29+%2B+D
amplitude is+A
period is 2pi%2FB
phase shift is C (positive is to the left)
vertical shift is D

in your case A=1.4, B=0.6, C=0,+D=0
so,
amplitude A=1.4
period+=2pi%2F0.6=2pi%2F%286%2F10%29=pi%2F%283%2F10%29=10pi%2F3