Trig Graphs, and the Unit Circle

What is the value of sin(7π/6)?

• -1/2

• 1/2

• √3/2

• -√3/2

What is the value of cos(0)?

• 0

• 0.5

• 1

• -1

What is the radius of a unit circle?

• 0

• 1

• 2

• 3

What is the relationship between the unit circle and trigonometric functions?

• The unit circle defines the values of sine and cosine for angles measured in radians.

• The unit circle is used to calculate the area of triangles.

• The unit circle is only relevant for angles measured in degrees.

• The unit circle has no relation to trigonometric functions.

What is the equation of the sine function with a vertical shift of 3?

• y = sin(θ) + 3

• y = sin(θ) - 3

• y = sin(θ) + 1

• y = 3sin(θ)

What is the value of sin(π)?

• 0

• 1

• -1

• 0.5

What is the amplitude of the function y = -5cos(θ)?

• 3

• 5

• 7

• 10

What is the value of cos(2π)?

• 0

• 1

• -1

• 0.5

What is the value of cos(π/3)?

• 1/4

• 1/2

• 3/4

• 0

What is the period of the sine function?

• π

• 2π

• 3π

• 4π