Equations of Trigonometric Functions

What is the amplitude of the function y=-6sin2x

• 2

• 6

• π

• -6

What is the period of the function y=7cos6x?

• 2π

• 6π

• 6

• π/3

What is the period of the function y=5cos(⅕x)

• 10π

• 2π/5

• ⅕

• 10

What is the amplitude of the function y=9cos3x

• 9

• -9

• 3

• -3

What shift is happening in the function y=½sin3(x+4)

• Right 4

• Up 4

• Lef

• Left 4

Write an equation of a sine function with a period of π and amplitude of 7.

• y=7sin2πx

• y=7sinπx

• y=2sin7x

• y=7sin2x

Write an equation of a sine function with a period of 4π and amplitude of 5.

• y=5sin½x

• y=5sin2πx

• y=5sin4πx

• y=5sin4x

Write an equation of a cosine function with a period of 3π, amplitude of 2, and shift up 4.

• y=2cos⅔x-4

• y=2cos⅔(x+4)

• y=2cos3x+4

• y=2cos⅔x+4

Write an equation of a cosine function with a period of π, amplitude of 1, and shift left π

• y=cos2(x+π)

• y=cos2(x-π)

• y=cos2x+π

• y=cos2x-π

What shift is happening in the function y=-6cos(x-½)

• Right ½

• Down ½

• Left ½

• Up ½