Graph Sin & Cos Quiz

What is the period for  $y=-2\sin\frac{x}{3}$  

• 2

•  $\frac{x}{3}$  

•  $6\pi$  

•  $\frac{1}{3}$  

What is the start for  $y=\cos\left(x-\frac{\pi}{4}\right)$  

•  $\frac{\pi}{4}$  

• 0

•  $2\pi$  

• 4

What is the vertical shift for  $y=\sin2x+3$  

• down 3

• down2

• up 3

• down 3

What is the critical value for y = sin2x+3

• 2

• 3

• $\frac{\pi}{4}$

• $2\pi$

This graph has not shifted in any way. Is it sine or cosine?

• sine

• cosine

Amplitude refers to....

• how high and low the function varies from the center line.

• the length of the function

• how often the function repeats

• how excited you are right now

The period of a function is

• how long one cycle is before the function repeats

• how high and low the function goes from the center line

• the range of the function

• the length of time to finish this question

Where is your first key point for  $y\ =\ \cos\ x$  

• (0,-1)

• (1,0)

• (0,0)

• (0,1)

Where is your first key point for  $y=\cos\left(x-\frac{\pi}{4}\right)$  

• 0

•  $\frac{\pi}{4}$  

•  $-\frac{\pi}{4}$  

•  $2\pi$  

Which way does the graph shift for  $y\ =\ 2\sin\left(x+\frac{\pi}{3}\right)$  

• left 2

• right $\frac{\pi}{3}$  

• left  $\frac{\pi}{3}$  
  

• no shift at all