Question
Asked Sep 9, 2019
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Consider y=3cos(2x)-1. 

Find the amplitude, vertical shift and period. Graph. 

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Expert Answer

Step 1

Formula:

y acos (bx-c+d
ох - с
Amplitude is a
27T
period is
Vertical shift is -d
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y acos (bx-c+d ох - с Amplitude is a 27T period is Vertical shift is -d

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Step 2

Apply the above formula in y ...

y 3cos (2x)
-1
Amplitude is 3.
27T
period is
Vertical shift is -1
help_outline

Image Transcriptionclose

y 3cos (2x) -1 Amplitude is 3. 27T period is Vertical shift is -1

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Math

Trigonometry

Trigonometric Ratios

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