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2.6 Algebraic Proof

Prop's of Equality. 1. Reflexive (reflex)Hint2. Symmetric (symm)Hint3. Transitive (trans)Hint. Prop's of Equality. 4. Addition (add)Hint5. Subtraction (subtr)Hint6. Multiplication (mult)Hint. Prop's of Equality. 7. Division (div)Hint8. Substitution (subst)Hint9. Distri

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2.6 Algebraic Proof

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    1. 2.6 Algebraic Proof

    2. Prop’s of Equality 1. Reflexive (reflex) Hint 2. Symmetric (symm) Hint 3. Transitive (trans) Hint

    5. Example – Name the prop used: If 3x = 120 ? x = 40. If 12 = AB ? AB = 12. If AB = BC & BC = CD ? AB = CD. If y = 75 & y = m<A ? m<A = 75.

    6. Paragraph Proof (review) – informal proof in form of paragraph that uses facts to justify each step 2-Column Proof – formal proof in which 2 columns are needed: 1. statements 2. reasons

    7. Parts of 2-Column Proof Given: ~~~~~~~ Prove: ~~~~~~~

    8. Example 6-2a

    9. Example 6-2c

    10. Example 6-2e

    11. Example 6-4b

    12. Example 6-4c

    13. Assignment 2.6 p. 97 (14-25 all, 26-32 even, 38-42 even, 48-52 even)

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