Final answer:
The question asks to find the density function of a random variable y given its probability density function (pdf). However, the specific pdf function is not provided in the question.
Step-by-step explanation:
The question is asking to find the density function of a random variable y, given its probability density function (pdf). Unfortunately, the actual pdf function is not provided in the question, so we would need more information in order to solve it. The pdf function describes the likelihood of different values occurring for the random variable y.