What function does an extranet perform?

An extranet is a private network that uses Internet technology and the public telecommunication system to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses.

(4, 2)

to get from point A to point B you must go left 2 units and down one

To get from point B to point C you must go down 2 and right 2

so now we know the side lengths to get tp each point so either go right 2 and up one from point C to get D or go down 2 and right 2 from A to get to D

Hope this helps