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2.6 Algebraic Proof PowerPoint Presentation
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2.6 Algebraic Proof

2.6 Algebraic Proof

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2.6 Algebraic Proof

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    1. 2.6 Algebraic Proof

    2. Props 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)