1. Math on the Mind Solve each inequality. Graph the solutions. 1.p – 7 –52.w – 3 < –9 3.x + 6 > 44.13 9 + h > > p 2 > w < –6 x > –2 < 4 h, or h 4 >

2. Solving One-Step Inequalities Multiplication and Division Unit 6 Lesson 3 hrsbstaff.ednet.ns.ca/matkins/.../PowerPoints/6.1%20Inequalities.ppt

3. THE TRICK….. When you multiply or divide each side of an inequality by a negative number, you must reverse the inequality symbol. hrsbstaff.ednet.ns.ca/matkins/.../PowerPoints/6.1%20Inequalities.ppt

4. Solving Using Division 33 hrsbstaff.ednet.ns.ca/matkins/.../PowerPoints/6.1%20Inequalities.ppt

5. Solving by dividing by a negative # -2 hrsbstaff.ednet.ns.ca/matkins/.../PowerPoints/6.1%20Inequalities.ppt

6. Solve –4c < 24. Graph the solution. c > –6 –4 –4

7. z3z3 z > –6 3 > 3(–2) z3z3 ( ) Solve > –2. Graph the solution.

8. A. –3y  15 y  –5 B. 7m < 21 m < 3 Example 5: Solve and graph. 0 3–3 5 7 7 –7 –5 04 www.ezwebsite.org/Photos/files1778/4CH2L5.ppt

9. A. –8y  24 y  –3 B. 9f > -45 f > -5 Example 6: –8 9 9 –3 0 –74 -10-50 Solve and graph. www.ezwebsite.org/Photos/files1778/4CH2L5.ppt

10. Who uses inequalities?

11. Your family budgets $160 to spend on fuel for a trip. How many times can they fill the car’s gas tank if it cost $25 each time? Your family can fill the car’s tank at most 6 times. Define:Let = the number of tanks of gas. t 25t 160 < 25 25 t 6.4 <

12. The cost of a gallon of orange juice is $3.50. What is the maximum number of containers you can buy for $15?

13. Four times a number is greater than 48. What are the possible values for the number?

14. The quotient of a number and 15 is no greater than 450. What are the possible values for the number?