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College Algebra & Trigonometry, 2018a

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9.4. PHASE SHIFT 423<br />

Exercises 9.4<br />

Match each function with the appropriate graph.<br />

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

3. y =cosx − 1 4. y =sinx +1<br />

5. y = sin(x− π 4<br />

) 6. y =1− cos x<br />

7. y =sinx − 1 8. y =cos(x+ π 4 )<br />

1<br />

2<br />

1<br />

A.<br />

− π 4<br />

−1<br />

π<br />

4<br />

3π<br />

4<br />

5π<br />

4<br />

7π<br />

4<br />

B.<br />

−1<br />

0<br />

π<br />

2<br />

π<br />

3π<br />

2<br />

2π<br />

1<br />

1<br />

−1<br />

0<br />

π<br />

2<br />

π<br />

3π<br />

2<br />

2π<br />

π<br />

4<br />

3π<br />

4<br />

5π<br />

4<br />

7π<br />

4<br />

9π<br />

4<br />

C.<br />

−2<br />

D.<br />

−1

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