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OpenStudy (anonymous):
Which of the following is a sinusoid? A. y = |x| B. y = 2x C. y2 + x2 = 9 D. y = 2sin x
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OpenStudy (anonymous):
D
Directrix (directrix):
D) A sine wave, or sinusoid, is the graph of the sine function in trigonometry. A sinusoid is the name given to any curve that can be written in the form (A and B are positive). Sinusoids are considered to be the general form of the sine function.
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