IM1 Unit 12 Review

Which of the following is a counterexample for this conditional statement? If a number is a multiple of 3, then it is divisible by 9.

• A) 24

• B) 10

• C) 27

• D) 31

What is the hypothesis in this conditional statement? If Tracy got stung in the foot by a bee, then she has a swollen foot.

• Tracy got stung in the foot by a bee

• Tracy has a swollen foot

Is the converse of the following conditional true? If h ≥ 10, then h ≤ 10.

• yes

• no

Is the contrapositive of the following conditional true? If t ≤ 8, then t ≥ 7.

• yes

• no

Is the following biconditional true? f = 4 if and only if 9 = 3f - 3.

• yes

• no

What is the reason for Step 3 and 4?

• Definition of linear pairs.

• Definition of supplementary angles.

• Definition of congruence.

• Combine like terms.

What is the reason for Step 7?

• Definition of linear pairs.

• Definition of supplementary angles.

• Definition of congruence.

• Combine like terms.

What is the reason for Step 2?

• Subtraction property of equality

• Addition property of equality

• Combine like terms.

• Division property of equality.

What is the reason for Step 3?

• Subtraction property of equality

• Addition property of equality

• Combine like terms.

• Division property of equality.

u = ?

• -17

• -1

• 1

• 17