Final answer:
The unit circle can help us plot the points of the sine function and identify its patterns.
Step-by-step explanation:
A sine function is a function that oscillates between +1 and -1 every 2 radians. The unit circle can help us plot the points of the sine function and identify its patterns. The x-coordinate of a point on the unit circle represents the angle in radians, and the y-coordinate represents the value of the sine function at that angle. By plotting points on the unit circle and connecting them, we can create the graph of the sine function.