What can be used as a reason in a two-column proof?

Select each correct answer.

a property of algebra

a counterexample

a conjecture

a given

Two column proofs are organized into statement and reason columns. Each statement must be justified in the reason column. The reason column will typically include "given", vocabulary definitions, conjectures, and theorems.

Therefore, w hat can be used as a reason in a two-column proof are:

a property of algebra

a conjecture

a given.