Circular functions review

What is the equation of the graph shown?

• y=1/2cos2x
• y=1/2sin4x
• y=1/2cos4x
• y=4cos1/2x

Tags

CCSS.HSF-IF.C.7E

What is the amplitude of the graph? 

• 1
• 3
• 6
• 9

Tags

CCSS.HSF-IF.C.7E

Which of the following statements is accurate concerning the following function  f(x) = 5 + 3 sin(x – π/4)?

• The vertical shift is 3 units.
• The phase shift is π/4.
• The amplitude is 6.
• The period is π.

Tags

CCSS.HSF-IF.C.7E

What is the period of either graph?

(y = sin/cos x)

• 
  

  $\pi$

• $2\pi$
  

• $\frac{\pi}{2}$
  

• $\frac{\pi}{4}$

What is the period?

• 4π
• 2π
• π
• 8π

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.4

CCSS.HSF.TF.B.5

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

Tags

CCSS.HSF.TF.A.2

cos 5π/3

• -1/2

• 1/2

• √3/2

• -√3/2

Tags

CCSS.HSF.TF.A.2

cos 4π/3

• -√3/2
• √3/2
• 1/2
• -1/2

Tags

CCSS.HSF.TF.A.2

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

What is the exact coordinates of  3π/4 on the unit circle?

• (−√2∕2, √2∕2)
• (−√2∕2, −√2∕2)
• (−√3∕2, −√2∕2)
• (√2∕2, −√2∕2)

Tags

CCSS.HSF.TF.A.2