2. WARM UP Algebra 14,15 March 2012 1) Solve, graph and check: a) 3 +2(x +4)> 22 2) Find the equation. Explain. Check with a “test point”. 3) Evaluate a) 4x 2 b) (4x) 2

3. objectives Students will learn and apply property of exponents. Students will take notes, and use think-pair-share as they complete a handout. Homework due FRIDAY pg. 352: 2, 3, 4, 5, 6

4. Multiplying with Exponents Rule : so When multiplying like bases, add the exponents. take notes CW: PRACTICE: pg. 350: steps 1 - 4

5. Multiplying Exponents Rule: using a previous rule. PRACTICE: see page 351, example B

6. Dividing with Exponents Rule: When dividing like bases, subtract the exponents. PRACTICE: see Investigation, pg. 360 and pg. 361, example A

7. When the Power is Zero Rule: Anything to the zero power is 1. or all cancel for an answer of 1.

8. Negative Exponents Notice what happens with the example This leads to another rule. Rule:

9. order of operations (2x) 2 MEANS 2x∙2x = 2∙2∙x∙x = 2 2 ∙ x 2 = 4x 2 (EVERYTHING INSIDE gets multiplied by itself) 2x 2 means 2∙x∙x = 2x 2 (ONLY the “X” gets multiplied by itself) NOTE: (2x) 2 ≠ 2x 2

10. Complete (middle) practice handout protocol- work 10 minutes– present-- repeat show your work on a separate paper Be ready to share your work on a white board, on the chalk board or on poster paper.

11. debrief What math did we do today? What is easy? What is still confusing?