Phase Shift

Which is an equation of the cosine function with an amplitude of 2, period of Π, phase shift of Π/2?

• y= -2cos(x/2 - ∏/4)
• y= 2cos (x/2 + ∏)
• y= 2cos (2x-∏)
• y= -2cos(2x-∏/2)

Tags

CCSS.HSF-IF.C.7E

8.  What is the period for y = 4cos(¹/₂x +π) - 2?

• pi/2
• pi
• 3pi
• 4pi

Tags

CCSS.HSF.TF.A.4

CCSS.HSF.TF.B.5

What is the phase shift for the function
f(x) = -2sin(4x + π) - 1

• π
• 4π
• 2π
• π⁄4

Tags

CCSS.HSF-IF.C.7E

In the equation $y\ =\ \frac{1}{3}\cos\left(\frac{1}{2}x+\frac{\pi}{3}\right)$  , what is the phase shift?

•  $-\frac{2\pi}{3}$  

•  $\frac{2\pi}{3}$  

•  $\pi$  

•  $\pi$  

Tags

CCSS.HSF-IF.C.7E

Which is a correct equation for the graph shown?

• $y=3\sin\left(\pi x\right)$

• $y=\pi\sin\left(3x\right)$

• $y=\sin\left(\pi x\right)+3$

• $y=-3\cos\left(\pi x\right)$

Tags

CCSS.HSF-IF.C.7E