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The graph of a cosine function shows a reflection over the x-axis, an amplitude of 5, a period of 6, and a phase shift of 0.25 to the right.

Which is the equation of the function described?

 

f(x)=-5cos(pix/3-4pi/3)

 

f(x)=-5cos(pix/3-pi/12)

 

f(x)=-5cos(pix/3-1/4)

 

f(x)=-5cos(3pix-1/4)

 Mar 19, 2020
edited by Guest  Mar 19, 2020
 #1
avatar+21827 
+1

cos x

reflected

   -cos x

amplitude 5

    -5 cos x

period 6

   -5 cos ( pix/3)

phase shift .25 r

   -5 cos (pi x/3 - pi/12)

 Mar 19, 2020

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