Question

1) Choose True or False.

Which words match the description:

The statement of the reason for each step in a proof: ___.


algebraic proof

justification

informal proof

formal proof

2) Choose True or False.

Which words match the description:

An argument that uses logic without written justification to show that a conclusion is true: _____.


justification

algebraic proof

informal proof

formal proof

3) Choose True or False.

Which words match the description:

a proof that uses algebraic properties to reach a conclusion about an algebraic equation


informal proof

algebraic proof

justification

formal proof

4) Choose True or False.

Which words match the description:

An argument that uses written justification in the form of definitions, properties, and previously proved geometric principles to show that a conclusion is true: ____


informal proof

algebraic proof

justification

formal proof

Answer 1

1) The statement of the reason for each step in a proof:
- algebraic proof: False
- justification: True
- informal proof: False
- formal proof: False

2) An argument that uses logic without written justification to show that a conclusion is true:
- justification: False
- algebraic proof: False
- informal proof: True
- formal proof: False

3) A proof that uses algebraic properties to reach a conclusion about an algebraic equation:
- informal proof: False
- algebraic proof: True
- justification: False
- formal proof: False

4) An argument that uses written justification in the form of definitions, properties, and previously proved geometric principles to show that a conclusion is true:
- informal proof: False
- algebraic proof: False
- justification: False
- formal proof: True