Conditional Statements Review

True or False: a counterexample is an example that makes a definition or conjecture incorrect

• True
• False

If an animal is furry, then it is a hamster. What would be an appropriate counterexample?

• goldfish
• frog
• elephant
• cat

If something is an angle, then it is acute. What is an appropriate counterexample?

• 70⁰
• 45⁰
• 120⁰
• True. There is no counterexample.

Tags

CCSS.7.G.B.5

If something is a vehicle, then it is a Hyundai. What is an appropriate counterexample?

• Hyundai Sonata

• Mercedes Benz

• Hyundai Genesis

• Both A and C are counterexamples.

The statement "an angle is a right angle if and only if its measure is 90^o" is an example of what type of statement?

• Conditional

• Conjecture

• Biconditional

This symbol, ↔, means?

• and
• or 
• if and only if
• implies

What are the two parts of a conditional statement?

• Hypothesis

• Conclusion

• Converse

• Inverse

What is it hypothesis in the statement:" If today is Tuesday, then we have school."?

• Tomorrow is Wednesday.

• We have school.

• Today is Tuesday.

• We do not have school.

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

Write the conclusion of the statement,

"If you are Anthony Rizzo, then you are a Chicago Cub."

• You are Anthony Rizzo.

• You are a Chicago Cub.

• The Cubs are the best.

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

Identify the hypothesis and conclusion of the conditional statement:
If you give me twenty dollars, then I will be your best friend.

• Hypothesis: I will be your best friend
  Conclusion: you give me twenty dollars
• Hypothesis: you give me twenty dollars
  Conclusion: I will be your best friend
• Hypothesis: if you have to pay for friends
  Conclusion: then you probably should reevaluate your life
• Hypothesis: you will not have to pay twenty dollars
  Conclusion: if you have lots of friends

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A