1 / 13

4-6 solving inequalities using multiplication and division

4-6 solving inequalities using multiplication and division. Miss battaglia – algebra 1 CP Objective: Use multiplication and division to solve one-step inequalities; use inequalities to model real-world problems. Warm up.

Download Presentation

4-6 solving inequalities using multiplication and division

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 4-6 solving inequalities using multiplication and division Miss battaglia – algebra 1 CP Objective: Use multiplication and division to solve one-step inequalities; use inequalities to model real-world problems.

  2. Warm up • A tree is 4.5 m tall and has a shadow 5.4 m long. How tall is a bush that has a shadow 1.5 m long? (Hint: Set up a proportion)

  3. Work with a partner • Consider the inequality 4 > 1 • Replace each with <, >, or =.

  4. Multiplication property of inequality For all real numbers a and b, for c > 0; If a > b, then ac > bc If a < b, then ac < bc For all real numbers a and b, for c < 0; If a > b, then ac < bc If a < b, then ac > bc

  5. Division property of inequality For all real numbers a and b, for c > 0; If a > b, then If a < b, then For all real numbers a and b, for c < 0; If a > b, then If a < b, then

  6. example • Consider the inequality -2 > -5 • What inequality do you get when you multiply each side by 3? • b) What inequality do you get when you multiply each side by -3?

  7. Solve & graph

  8. Solve & graph

  9. Solve & graph

  10. Solve & graph

  11. Community service • The student council is sponsoring a recycling drive to raise money to buy food for a food bank. A case of 12 jars of spaghetti costs $13.50. What is the greatest number of cases of sauce the student council can buy if they collect $216?

  12. classwork

  13. homework • Pg 188–189 # 2- 4, 11, 12, 17-22, 24

More Related