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4.20.15

4.20.15. Reminders of BEHAVIOR 2 ND HOUR: (that next time I have to call home): Deshawn bell (TALKING, (POUNDING), PLAYING GAME ON PHONE, NOT WORKING) jawan bough (NOT WORKING BUT READING OR PUTTING HEAD DOWN) JEREMY (PHONE) 3 RD HOUR CAWAN (PHONE). Alg 2; 4.17.15.

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4.20.15

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  1. 4.20.15 Reminders of BEHAVIOR 2ND HOUR: (that next time I have to call home): Deshawn bell (TALKING, (POUNDING), PLAYING GAME ON PHONE, NOT WORKING) jawan bough (NOT WORKING BUT READING OR PUTTING HEAD DOWN) JEREMY (PHONE) 3RD HOUR CAWAN (PHONE)

  2. Alg 2; 4.17.15 Introduction to systems of inequalities Sections 7.1 & 7.2 CARNEGIE Consider handing out construction paper (cover up paper) because we want the class to work together.

  3. Quote for the day: "I would rather be the last A than the first F". Slow. Down. Your. Work. Be thoughtful. Be careful. Be neat.

  4. Daily Learning Goal: I will learn a real-world situation that involves an inequality with two variables. Daily Learning Objective: I can describe a real-world situation that involves an inequality with two variables.

  5. “Warm-up” Problem A basketball player has been averaging 20 points per game from scoring 2- and 3-point shots. If she scores 6 two-point shots and 2 three-point shots, will she meet her points-per-game average? 2 shots 6 shots Underline what the problem is asking you to do. Circle supporting information. Discuss with a neighbor and determine your answer.

  6. Stop! Pause… What are the short lines on your paper? Where your elbow partner initials that you worked together on that step.

  7. If she scores 7 two-point shots and 2 three-point shots, will she meet her points-per-game average? Show you calculations on paper. Discuss your answer with your elbow partner.

  8. 2. If she scores 7 two-point shots and 4 three-point shots, will she meet her points-per-game average? Show you calculations on paper. Discuss your answer with your elbow partner.

  9. 3. Write an equation to represent the number of 2-point and 3-point shots that total 20 points. Use x as the number of 2-point shots and y as the number of 3-point shots. Underline what the problem above is asking you to do. Circle supporting details. Compare your answer with a neighbor and determine your collective answer.

  10. Graph the equation 2x + 3y = 20 Graph the ordered pairs from previous questions. What can we change in the EQUATION that will show AT LEAST 20 points? # Of 3- Pt S H O T S Number of 2-point shots

  11. How many total points do these make? Which ordered pairs are part of the solution?

  12. 2x + 3y ≥ 20 Remember that we SHADED the line to show solutions on the number line. How do you think we could show solutions here? # Of 3- Pt S H O T S Number of 2-point shots

  13. Do Now 4/21 Graph the inequality 4x + 2y ≥ 10

  14. Do Now 4/22/15 • Determine the solution to the system of equations • 2x = 12 – 3y • 4x – y = 10

  15. Do Now 4/23/15 • Karen and Amanda are tutors. Karen offers tutoring sessions for $3.00 each, plus a $5.00 fee for supplies. Amanda offers tutoring sessions for $2.00 each, plus an $8.00 fee for supplies. Write and graph a system of linear equations that represents this situation. Determine the number of sessions at which both tutors will cost the same amount.

  16. Do Now 4/24 • On the NUMBER LINE: • > Or < we used a _________ dot • ≥ or ≤ we used a ________ dot • On a GRAPH: • > Or < we used a _________ line • ≥ or ≤ we used a ________ line

  17. Warm Up x – 2y = 14 x + 3y = 9

  18. Do Now 4/27/15 • How to solve systems • *Substitution by solving for _____ or ______ • *Elimination-use ______________ to get ____ or _____ to cancel • (After completing your do now, take a clean sheet of paper and fold it into 4 sections.)

  19. Do Now 4/28 Dashedline or Solid line? y > 9 – x 4x – 5y ≤ 37 x + 2/3y ≤ 6 x + y < 4 7x – y > 12 y ≤ 0.65x + 33

  20. On a NUMBER LINE, we shaded ________ (direction) when it was GREATER THAN. e.g., x > 2 On a NUMBER LINE, we shaded ________ (direction) when it was LESS THAN. e.g., x < 2

  21. a. How should we shade on a COORDINATE PLANE for y > 2x + 1? b. How should we shade on a COORDINATE PLANE for y < 2x + 1? a. b.

  22. Do Now 4/29 • Graph the inequalities on ONE coordinate plane • y > x + 3 • y ≤ - x + 4

  23. Do Now 4/30 • Graph the inequalities on ONE coordinate plane • y ≤ 4x - 2 • y > 2x

  24. Do Now 5/1 • Graph the inequalities on ONE coordinate plane • y ≤ 4 • x> -2

  25. Review ‘Quiz’Solve the system all 4 ways • -6x + y = – 11 • -2x – 3y = -7 1. Substitution with x 2. Substitution with y 3. Elimination with x 4. Elimination with y

  26. Practice solving systems of inequalities by graphing. Materials needed: 2 colored pencils Circle one inequality in one color (and graph it in that color) Circle the other inequality in the 2nd color (and graph it in that color)

  27. Exit Ticket: Describe the word problem that we worked on today (in your own words). (Minimum 2 complete sentences) Explain why it has two variables. (Minimum 1 complete sentence) Describe another real-life situation where there may be two variables in an inequality. (Minimum 1 complete sentence)

  28. Exit Ticket:

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