What is the trigonometric graph sine

The video tutorial explains how to graph the sine function using the unit circle. It begins by discussing the representation of sine values as the y-coordinates of angles on the unit circle. The instructor then demonstrates how to create a function table to plot these values and graph the sine curve. The cyclical nature of the sine function is highlighted, showing how it repeats in both positive and negative directions. The tutorial emphasizes understanding the sine function's behavior through graphing and encourages questions for further clarification.

What does the sine of an angle represent on the unit circle?

• The Y coordinate

• The X coordinate

• The angle itself

• The radius

How is the sine value determined for an angle of π/2?

• It is undefined

• It is -1

• It is 0

• It is 1

What is the sine value at an angle of π?

• 1

• 0

• -1

• Undefined

At which angle does the sine function return to 0 after π?

• π/2

• 3π/2

• 2π

• π

What is the sine value at 3π/2?

• 1

• 0

• Undefined

• -1

How does the sine function behave as angles continue beyond 2π?

• It decreases continuously

• It stops

• It becomes undefined

• It repeats the same pattern

What happens to the sine function when angles are negative?

• It stops

• It becomes zero

• It becomes undefined

• It mirrors the positive direction