Algebraic Proofs--Checking for Understanding

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

• Reflexive
• Symmetric
• Transitive
• Substitution

Tags

CCSS.7.EE.A.1

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

• Prove
• Given
• Reason
• Statement

Tags

CCSS.8.G.A.5

Step 2 is what

• Substitution property (simplify)
• Multiplication property of equality
• Division property of equality
• Distributive Property

Tags

CCSS.HSA.REI.A.1

What is step 4

• Substitution property (simplify)
• Addition property of equality
• Subtraction property of equality

Tags

CCSS.HSA.REI.A.1

What is step 6

• Subtraction property of equality
• Addition property of equality
• Division property of equality

Tags

CCSS.HSA.REI.A.1

What is reason 2?

• Addition Property of Equality
• Subtraction Property of Equality
• Multiplication Property of Equality
• Division Property of Equality

Tags

CCSS.HSA.REI.A.1

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

• Transitive Property         
• Symmetric Property
• Reflexive Property
• Substitution Property

Tags

CCSS.7.EE.A.1

Which property says given 3x² + 1, if x = 5, then 3(5)² + 1?

• Substitution Property
• Reflexive Property
• Symmetric Property
• Transitive Property

Tags

CCSS.7.EE.A.1

10x + 9 = 4x - 9

• 0
• 3
• -3
• -18

Solve:
2(2t - 3) = 6(t + 2)

• t=9
• t=4
• t=-9
• t=-3