trig review

What is the amplitude?

• 2

• 4

• 8

• -6

What is the period?

What is the vertical shift?

What is the phase shift if the basic function is cosine?

What is the phase shift if the basic function is sine?

What is the range of y = sin x  ?

• {-1 < y < 1}
• {-1 ≤ y ≤ 1}
• {-1 < x < 1}
• {-1 ≤ x ≤ 1}

What is the period in the function
-3 sin 2(x – 40°) + 7
?

• 720°
• 360°
• 180°
• 120°

Which describes the midline of the function
-3 sin 2(x – 40°) + 7
?

• x = 7
• y = 7
• x = 1
• y = 4

How could transform sin x into cos x?

• sin (x +90°) = cos x
• sin (x –90°) = cos x
• sin (x +180°) = cos x
• sin (x –180°) = cos x