Unit 2 - 3 Exam

Sine or Cosine?

• Sine

• Cosine

Sine or Cosine?

• Sine

• Cosine

The _____ represents half the distance between the maximum and minimum of a sine or cosine graph.

• Period

• Frequency

• Extreme Values

• Amplitude

The period of a sine or cosine graph can be found using the formula:

• It's always $2\pi$

• $\frac{2\pi}{B}$

• $B\left(2\pi\right)$

• $2\pi+B$

Phase shift means...

• An up or down movement

• A left or right movement

• Height of graph

What is the amplitude of this function?

• 2

• $2\pi$

• -2

• 1

What is the period of $y=4\cos(5x)$  ?

•  $\frac{2\pi}{5}$  

•  $\pi$  

• 5

•  $5\pi$  

What is the vertical shift for $y=4\cos(0.5x+π)-2$ ?

• Up 2

• Left 2

• Right 2

• Down 2

Describe the shift: $\cos(x-(π/4))$  

• Up  $\pi$  

• Down  $\frac{\pi}{4}$  

• Left $\frac{\pi}{4}$  

• Right $\frac{\pi}{4}$  

What is the domain of y = sin(x)?

• $(-∞,∞)$

• $(∞,-∞)$

• $\left[∞,-∞\right]$

• $\left[-∞,∞\right]$