Trig DTP 2/23

What is the equation of the graph?

•  y = 2 cos x
• y = sin x
• y = 2 sin x
• y = sin 2x 

Where does the graph of cosine begin?

• (0,0)

• (0,1)

• (0, Pi)

• (1, Pi)

What is the period of either graph? 
y = sin(x)      &   y = cos (x)

• Pi
• 2Pi
• Pi/2
• Pi/4 

Sine or Cosine?

• y=sinx
• y=cosx

what is the amplitude of

y = -3sin (7x) -2

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