What is the relationship between knowledge and justification?
For a belief to be considered knowledge, it must have a good basis. A good basis is created through justification, justification is a continuum, and once you have enough justification, you can count on a belief to be considered knowledge. In short: knowledge depends on justification.
What does it mean to say that knowledge is factive?
You have enough justification to believe your belief is true.
What is knowledge?
Stuff that is true, you believe it, and you have good justification (a good basis) for believing in it. It’s factive