A2 Period and Equations for Sin and Cos

Write the equation for a sine function with an amplitude of 6 and a period of π/4.

• y=6sin8x

• y=6sin8(x-1)

• y=6sin(1/4x)

• y=6sinx

What is the equation of the graph?

•  y = 2 cos (x)
• y = sin (x)
• y = 2 sin (x)
• y = sin (2x) 

What is the period?

• π/4
• π/2
• 3π/4
• π

• sine function

• cosine function

• sine function

• cosine function

• 2π/5

• π

• 5

• 5π

The period of a function is

• the length of one cycle

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

• the range of the function