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Choose the function whose graph is given by:VAATA28+22O A. y=4cos(3x)O B. y=-4cos( 5 x)O C. y=4cos(2x)O D. y= Acos(4x)

Choose The Function Whose Graph Is Given ByVAATA2822O A Y4cos3xO B Y4cos 5 XO C Y4cos2xO D Y Acos4x class=

Answer :

We see that:

• the graph has the same shape as the graph of the cosine function,

,

• the amplitude of the graph is A = 4,

,

• the period of the function is T = π.

The function of the graph is:

[tex]f(x)=4\cdot\cos (2x).[/tex]

Answer

C. y = 4 cos(2x)

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