1.4

Identify the property of equality.
If 9=x, then x=9

• Reflexive

• Symmetric

• Transitive

• Substitution

For any numbers a, b, and c, if a = b and b = c, then a = c.

• Transitive Property         

• Symmetric Property

• Reflexive Property

• Substitution Property

What is always the 1st statement in reason column of a proof?

• Prove

• Given

• Reason

• Statement

What is reason 1?

• Subtraction Property of Equality

• Transitive Property of Equality

• Given

• Prove

Step 2 is what

• Substitution property (simplify)

• Multiplication property of equality

• Transitive property

• Distributive Property

What is step 6

• Subtraction property of equality

• Addition property of equality

• Division property of equality

What is reason 3?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

What is reason 5?

• Transitive Property

• Reflexive Property

• Symmetric Property

• Prove

What is the justification?

• Segment Addition Postulate

• Definition of Midpoint

• Addition Property of Equality

• Complement Theorem

What is the justification?

• Transitive Property of Equality

• Subtraction Property of Equality

• Division Property of Equality

• Substitution Property of Equality