2-2: Properties of Algebra. Properties Page 37: copy into your notes.

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Presentation transcript:

2-2: Properties of Algebra

Properties Page 37: copy into your notes

` Solve: 5x – 10 = 3x + 20 and justify each step

We just did our first proof! Proved this statement: If 5x – 10 = 3x + 20, then x must equal 15.

Given RT and PQ intersecting at S so that RS = PS and ST = SQ, Prove RT = PQ Fill in the blanks: Statements: 1.RS = PS; ST = SQ 2.RS+ ST = PS + SQ 3.RS + ST = RT PS + SQ = PQ 4. RT = PQ Reasons

Given: m < AOC = m < BOD Prove: m <1 = m< 3

Transitive and Substitution can usually be used interchangeably Reflexive, Transitive, and Substitution do not need “of equality” or “of congruence”

Classwork Pg 40: 1-12 together

Homework Pg 40: 2-14 even