I was given this sentence:
The explanation I was given is that the から at the end is used when giving information. What is the だ used for? What are other examples of だから usage?
A から B means 'B because A', and here, the B part is omitted, expecting the addressee to reconstruct it. See my answer to a related question.
だ is the copula, and is here because the because-clause ends with a noun. Depending on the type of the predicate, there are different endings.