How do I purchase edges?

I’m creating a new character for Hunter: The Reckoning. My virtues are Zeal (3 dots). How do I buy my edges?

The short guide on page 84 of the Reckoning book says “edges (according to your Virtue allocation)”. I understand this to mean that I have three dots to spend on Zeal edges.

I’m confused about how to spend those dots on edges. Each edge has several ability with a dot cost. Do I pay the full cost of each one? Or are they accumulative?

For example, the Judgment edges (pg.159-162) include:

  • Discern (1 dot)
  • Burden (2 dots)

If I want both of those, did I just spend 2 dots or 3?