Consider the periodic function $f$ shown in the following graph. Let $y = f(x)$.\ Which of the following function definitions correctly expresses $f$ as a sine function?\ $circ f(x) = 2sin(0.5(x + frac{pi}{8}))$ \ $circ f(x) = 2sin(2(x - frac{pi}{8}))$ \ $circ f(x) = 2sin(2(x - frac{3pi}{8}))$ \ $circ f(x) = 2sin(2(x + frac{pi}{8}))$ \ $circ f(x) = 2sin(0.5(x - frac{pi}{8}))$
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Amplitude: The function oscillates between -2 and 2, so the amplitude is 2. Show more…
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