Key Features of Sinusoidal Functions

What is the period of y = 2cos3x-5

• π/3 or 60 degrees

• 6π or 1080 degrees

• 2π/3 or 120 degrees

• 3π or 540 degrees

What is the amplitude? 

• 1
• 2
• 3
• 4

• Yes

• No

• Maybe

• What Graph?

Find the equation of the midline of the graph shown.

• y = 1
• y = 2
• y = 3
• y = 0

Find the amplitude of the graph shown.

• 2
• 4
• 6
• 8

Find the period of the graph shown.

• 2
• 4
• 6
• 8

Which equation represents the graph?

• y = cos x – 3
• y = sin x – 3
• y = cos (x – 3)
• y = sin (x – 3)

Which function has a period of 2?

• y = sin x

• y = sin π x

• y = sin 2x

• y = 2 sin x

Which equation describes the graph shown?

• y = cos 4x + 4

• y = 4 cos 0.5x

• y = sin 2x + 4

• y = 4 sin 0.25x