What is the period of the function #y= -2 cos(4x-pi) -5#?

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What is the period of the function #y= -2 cos(4x-pi) -5#?

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Answer 1 · 2018-03-12T18:20:52

#pi/2#

Explanation:

In a sinusoidal equation

#y = a cos(bx+c) + d#,

the amplitude of the function will equal #|a|#, the period will equal #(2pi)/b#, the phase shift will equal #-c/b#, and the vertical shift will equal #d#.

So when #b = 4#, the period will be #pi/2# because #(2pi )/4 = pi/2#.

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What is the period of the function #y= -2 cos(4x-pi) -5#?

1 Answer

Explanation:

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