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Mathematics 9 Online
OpenStudy (anonymous):

the function f(x)=-2cos(3x-pi/4) has a. amplitude 3 and period pi b. amplitude 2 and period 2pi/3 c. amplitue 3 and period 2pi d. amplitude 3 and period 4pi

OpenStudy (anonymous):

i know the amplitude i 3 but what the period?

OpenStudy (anonymous):

Amplitude is 2 period 2pi/3

OpenStudy (dumbcow):

f(x) = +-Acos(B(x-h)) +k A - amplitude Period = 2pi/B Horizontal shift = h Vertical shift = k

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