Functions (trigonometric)

What is the equation of the graph?

• y = - 6 cos x - 1
• y = 3 cos x - 4
• y = -7 cos x 
• y = -3 cos x - 4 

Which value helps identify the period in the following function y=asin(b(x-c))+d?

• a

• b

• c

• d

what is the frequency of y= -3sinx

• 1/π

• 1/2π

• 1/3π

• 1/4π

What is the equation of the midline of the graph?

• y = -1

• y = 0

• y = 3

• y = -3

Find the equation of the given graph.

• $y=5\cos\left(4\pi x\right)$

• $y=5\cos\left(2\pi x\right)$

• $y=5\cos\left(\frac{\pi}{8}x\right)$

• $y=5\cos\left(\frac{\pi}{4}x\right)$

• $y=5\cos\left(8\pi x\right)$

The __________ represents the distance above or below the midline of a sine or cosine graph; we always take the absolute value of this height.

• Period

• Vertical Shift

• Phase Shift

• Amplitude

What is the range of this function?

• (-3,0)

• [-3,0]

• [-3,3]

• (-3,3)

Graph the equation:
 $y=2\sin\frac{1}{3}\left(x+\pi\right)-2$  

• 
• 
• 
• 

The __________ represents half the distance between the max and min of a sine or cosine graph.  It also represents the distance from the midline to either the max or min.

• Period

• Frequency

• Extreme Values

• Amplitude

What is the amplitude

• 1

• 2

• 3

• 4