1. Inequalities August 19 and 23, 2010

2. Opener Give an example: {Negative numbers} is NOT closed under multiplication. Solve: x2= 324 State the domain and range of the function :

3. Section 1.6 - Inequalities < less than > greater than open dot ≤ less than or equal to ≥ greater than or equal to closed dot

4. Examples: Assume the domain is all real numbers 4x-7 > 1

5. Examples 3x-5 < 2

6. Examples x-4 > -1 or x-4 ≤ -6

7. Examples 4-3x > -2

8. Examples 3 ≤ x+4 < 5

9. Examples |x| > 3

10. Examples |x-1| < 4

11. Examples |3x+7|≥ 7

12. Exit Slip 5 – 3x ≥ -4 4 – 3x < -2 |5x – 3| > 22 |x + 3| > -6