1. 2-2: Properties of Algebra

2. Properties Page 37: copy into your notes

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

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

5. 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 1. 2. 3. 4.

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

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

8. Classwork Pg 40: 1-12 together

9. Homework Pg 40: 2-14 even