Answer:
Virtual representation means that even individuals who cannot or do not vote are represented in the legislature by similar voters who can and do vote. Actual representation demands that every person can vote for a representative.
Virtual representation is when you're being represented by decision makers, but you weren't allowed to vote on who they would be, like when the king of England would assign governors to royal colonies. Actual representation is when you pick the decision makers that represent you, like electing the President.