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A cosine function has a period of 3π/4, an amplitude of 4, and a vertical translation 3 units down. The function is not reflected over the x-axis. What is the equation for this cosine function?

 

f(x)=___cos(___x)___

 Mar 6, 2020

Best Answer 

 #1
avatar+22043 
+2

cos x         give it amplitude 4

4 cos x      3 units down makes it     4 cos x    -  3

NOT reflected , so it is still   4 cos x    -3

period = 3pi/4    makes it   2pi/(3pi/4)  = 8/3       4 cos (8x/3)   - 3

 Mar 6, 2020
 #1
avatar+22043 
+2
Best Answer

cos x         give it amplitude 4

4 cos x      3 units down makes it     4 cos x    -  3

NOT reflected , so it is still   4 cos x    -3

period = 3pi/4    makes it   2pi/(3pi/4)  = 8/3       4 cos (8x/3)   - 3

ElectricPavlov Mar 6, 2020
 #2
avatar+109499 
+1

Nice, EP  !!!!

 

 

cool cool cool

CPhill  Mar 6, 2020

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