1. Before the Bell: 3-1 Evaluate. 1. 10 3 2. 10 1 3. 10 4 4. 10 5 5. 10 6 1000 10 10,000 100,000 1,000,000

2. I can Today’s learning Target: 3-1 simplify expressions with negative exponents evaluate the zero exponent.

3. 2-5 Equations, Tables, and Graphs Vocabulary Integer Exponent Zero Exponent 3-1

4. 2-5 Equations, Tables, and Graphs Look for a pattern in the table to extend what you know about exponents to include negative exponents. ÷ 10 10 2 1 0 –1 10 –2 10 100 10 1 1 1 1 = 0.1 1 10 1 100 = 0.01 3-1 Don’t try to copy this, just look for patterns.

5. 2-5 Equations, Tables, and Graphs Example 1 Simplify. Write in decimal form. A. 10 –2 10 –2 = 1 10 = 1 100 = 0.01 B. 10 –1 = = 0.1 1 10 = 1 3-1

6. 2-5 Equations, Tables, and Graphs Example 2 10 –8 = 1 100,000,000 = 1 10 10 10 10 = 0.00000001 Simplify. Write in decimal form. 3-1

7. 2-5 Equations, Tables, and Graphs Example 4 10 –9 = 1 1,000,000,000 = 1 10 10 10 10 10 10 10 10 10 = 0.000000001 3-1

8. 2-5 Equations, Tables, and Graphs 5 –3 Example 5 Simplify. 3-1

9. 2-5 Equations, Tables, and Graphs (–10) –3 Example 6 Simplify. 1 –10 –10 –10 –1000 1 = –0.001 3-1

10. 2-5 Equations, Tables, and Graphs (–7) –4 Example 7 Simplfy. 1 –7 4 1 –7 –7 2401 1 3-1

11. 2-5 Equations, Tables, and Graphs 4 –2 Example 8 Simplify. 4 1 2 1 4 16 1 3-1

12. 2-5 Equations, Tables, and Graphs Subtract inside the parentheses. Evaluate 5 – (6 – 4) –3 + (– 2) 0. Evaluate the exponents. Example 9 5 – (6 – 4) –3 + (–2) 0 = 5 – (2) –3 + (–2) 0 = 5 – + 1 1818 = 5 7878 Add and subtract from left to right. 3-1

13. 2-5 Equations, Tables, and Graphs Subtract inside the parentheses. Evaluate 3 + (7 – 4) –2 + (–8) 0. Evaluate the exponents. Example 10 3 + (7 – 4) –2 + (–8) 0 = 3 + (3) –2 + (–8) 0 = 3 + + 1 1919 = 4 1919 Add. 3-1

14. 2-5 Equations, Tables, and Graphs Did you master today’s learning target? Prove it with a six question quiz. 3-1

15. 2-5 Equations, Tables, and Graphs Lesson Quiz Evaluate the powers of 10. 1. 10 –3 0.001 2. 10 –7 0.0000001 Evaluate. 3. (–6) –2 4. 4 2 –3 +10 –1 1 36 3535

16. 2-5 Equations, Tables, and Graphs Assignment: Section 3-1 2 – 40 evens See me about making up the chapter 2 test!