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Materials Reminders Get out your agenda if you see your name below. I would like to have you in my FLEX tomorrow. Period 2 Period 7 Which of the following is the best value? A dozen donuts for $3.76 Or A 20-pack of donuts for $6 4-2 Proportional and Nonproportional Relationships How do I identify proportional and nonproportional relationships? Important Vocabulary Proportional – two quantities with a constant ratio Example: 6 12 10 20 Nonproportional – two quantities that do not have a constant ratio Example: 1 2 5 6 Questions: How do I identify proportional relationships? Notes: Determine whether the ratio between the two quantities remains the same Example: 1 shrimp costs $0.50 2 shrimp cost $1.00 3 shrimp cost $1.50 Note that the unit cost of one shrimp remains the same How do I identify nonproportional relationships? Determine whether the ratio between the two quantities does not remain the same Example: 1 shrimp costs $0.50 2 shrimp cost $0.75 3 shrimp cost $1.00 Quick Write Bubba eats 200 shrimp every day. Bubba keeps track of the total number of shrimp he has eaten each week in the following table. Monday Tuesday Wednesday Thursday Friday Saturday Sunday 200 400 600 800 1000 1200 1400 On the blank side of your Cornell Notes, write in complete sentences whether or not the table above shows a proportional or nonproportional relationship. Explain in great detail your reasoning. Quick Write Forrest tries to keep up with Bubba’s shrimp eating. Forrest keeps track of the total number of shrimp he has eaten each week in the following table. Monday Tuesday Wednesday Thursday Friday Saturday Sunday 50 100 125 200 275 300 325 On the blank side of your Cornell Notes, write in complete sentences whether or not the table above shows a proportional or nonproportional relationship. Explain in great detail your reasoning. Homework Page 196-197; 6-8, 13-16 and 20 AND Cornell Notes Summary