Inequalities and Justification Quiz

What inequality symbol goes with is at least?

• <

• >

• ≤

• ≥

Pick the correct inequality.

• A

• B

• C

• D

Solve the inequality.
x + 5 ≤ 13

• x ≥ 8
• x ≥ 18
• x ≤ 8 
• x ≤ 18 

Which number line shows the solution set to the inequality below?
x - 3 > -3

• A
• B
• C
• D

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Which are solutions?
-2(x + 5) > 6

• x > -8
• x < -8
• x > 8
• x < 8

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

• Reflexive
• Symmetric
• Transitive
• Substitution

What is Addition property of equality

• a.   If a=b, then a+c=b+c
• b.  If a=b, then a-c=b-c
• c.  If a=b, then ac=bc
• d.  If a=b, then a/c=b/c

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

• Prove
• Given
• Reason
• Statement

Step 2 is what

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