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College Algebra & Trigonometry, 2018a

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434 CHAPTER 9. GRAPHING THE TRIGONOMETRIC FUNCTIONS<br />

1<br />

2<br />

21.<br />

−2π −π π 2π<br />

−1<br />

−2<br />

−3<br />

22.<br />

1<br />

−2π −π π 2π<br />

−1<br />

−2<br />

Match the function to the appropriate graph<br />

23. y = − cos 2x 24. y = 1 2 sin x − 2<br />

25. y = 2 cos(x+ π 2 ) 26. y = −3sin1 2 x − 1<br />

27. y = sin(x − π) − 2 28. y =− 1 2 cos(x−π 4 )<br />

29. y = 1 3 sin 3x 30. y =cos(x−π 2 )<br />

1<br />

2<br />

A.<br />

−2π −π π 2π<br />

−1<br />

−2<br />

−3<br />

B.<br />

1<br />

−2π −π π 2π<br />

−1<br />

−2<br />

2<br />

1<br />

2<br />

1<br />

−2π −π π 2π<br />

−1<br />

−2π −π π 2π<br />

−1<br />

−2<br />

−3<br />

C.<br />

−2<br />

D.<br />

−4

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