Based on the description of the rays and the provided options, the correct piecewise function seems to be:
y = { -2, x < 0 3, x ≥ 0
This corresponds to the rays starting from an open endpoint for the first ray (at y = -2 for x < 0) and a closed endpoint for the second ray (at y = 3 for x ≥ 0).
However, please double-check the specific conditions regarding the endpoints for absolute confirmation, especially which rays are open or closed at their endpoints.