Final answer:
The continuity of the function y(t) at t = 12 depends on specific information about the function and its behavior around t = 12.
Step-by-step explanation:
The function y(t) is continuous at t = 12 if the limit of the function as t approaches 12 from the left is equal to the limit of the function as t approaches 12 from the right, and both limits are equal to the value of the function at t = 12.
In order to justify whether the function y(t) is continuous at t = 12, we need to examine the function and its behavior around t = 12.
Unfortunately, the question does not provide the function y(t) or any information about it. Without knowing the specific function, it is not possible to determine if it is continuous at t = 12.