1. H ONORS G EOMETRY 2-1 I NDUCTIVE R EASONING & C ONJECTURE 2-2 L OGIC 2-3 C ONDITIONAL STATEMENTS

2. V OCABULARY If-then Statements Conditional Statements Hypothesis Conclusion Converse Inverse Contrapositive

3. E X 1: Change the conditional statement below to IF-THEN form then identify the HYPOTHESIS and CONCLUSION. Studying results in good grades

4. E X 1: Change the conditional statement below to IF-THEN form then identify the HYPOTHESIS and CONCLUSION. Studying results in good grades If you study, then you will make good grades. H: you study C: you will make good grades Hypothesis/Conclusion DOES NOT include the If and Then

5. Y OU T RY : Change the statement below to IF-THEN form then identify the HYPOTHESIS and CONCLUSION A polygon with six sides is a hexagon. Hypothesis/Conclusion DOES NOT include the If and Then

6. Y OU T RY : Change the statement below to IF-THEN form then identify the HYPOTHESIS and CONCLUSION A polygon with six sides is a hexagon. If a polygon has six sides, then it is a hexagon. H: a polygon has six sides C: it is a hexagon Hypothesis/Conclusion DOES NOT include the If and Then

7. C HANGING A CONDITIONAL STATEMENT The three most common ways to change a conditional statement are by taking its: Inverse, Converse, or Contrapositive. In each case, either the hypothesis and the conclusion switch places, or a statement is replaced by its negation.

8. C HANGING A CONDITIONAL STATEMENT

15. Y OUR TURN. W RITE EACH STATEMENT AND STATE ITS TRUTH VALUE.

17. T ICKET O UT THE D OOR : Write the If-Then Conditional, Converse, Inverse, and Contrapositive. “Those who do not remember the past are condemned to repeat it.” – George Santayana

18. T ICKET O UT THE D OOR :