Algebra 2 Trigonometry

What is the period of the following function?

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What is the period of the following function?

What is the b-value of the following function? y=acosb(x+c)+d

• 1

• 2

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What is the period of the following function?

Which equation?

• y= cos2x

• y= (1/2)cosx

• y= cos(1/2)x

• y= 2cosx

c

b

sine graphs

tangent graphs

cosine graphs

b

c

a

used to find period

where the wave begins

how tall the wave is

What is the equation of the graph?

• y = -2 cos x - 3

• y = 3 cos x - 2

• y = -7 cos x - 3

• y = -3 cos x - 4 

• amplitude

• period

• horizontal shift

• vertical reflection

• amplitude

• period

• horizontal shift

• vertical reflection