already is peicewise continuous. I assume the problem is actually asking how to make it continuous.
Here are some questions for you. I'm going to define a function on the same domain. Let .
First Question: What's the relationship, if any, between and ?
Second Question: Can you think of a continuous function defined on all of that equals on 's domain of ( ?
In other words, find a function such that is continuous everywhere, and for all .
What you're dealing with is something called a "removeable discontinuity", for reasons you'll hopefully soon understand. For now, classify these problems under "So Simple They're Confusing".