1. Monday January 11th Bell Ringer Part #1: Dontrell goes to the store to buy shirts for school. He notices a sign advertising 10 shirts for $12. Given this information, how much is does it cost for one shirt? Bell Ringer Part #2: There is a quiz Wednesday. Set a goal for this quiz and put it on your bell ringer sheet. TEACHER NOTE: HAND BACK GRADED WORK

2. Bell Ringer Cont. Dontrell goes to the store to buy shirts for school. He notices a sign advertising 10 shirts for $12. Given this information, how much is does it cost for one shirt? THIS IS A RATE PROBLEM. It is asking how much PER shirt…

3. So let’s use a table Rate (cost per shirt) Shirts (after the per) Cost (before the per) 1210 Now, just fill in the blank…

4. So let’s use a table Rate (cost per shirt) Shirts (after the per) Cost (before the per) $1.2 per shirt12 shirts$10 12/10= $1.2 per shirt

5. Weekly Goals Be sure to set a goal for yourself on the upcoming quiz… This way we can track out success

6. Class Website mrobyrne.com Go to the website for all handouts, homework and EXTRA CREDIT

7. This week Monday: I CAN identify characteristics of graphs involving rates Tuesday: I CAN review rate of change Wednesday: Rate of Change quiz Thursday: SLOPE Friday: SLOPE

8. Today Objective: I CAN identify characteristics of graphs involving rates Homework: #34 - rate of change practice

9. Rate of change on Graphs When the rate of change is POSITIVE the graph goes UP

10. Rate of change on Graphs When the rate of change is NEGATIVE the graph goes DOWN

11. Rate of change on Graphs When the rate of change is ZERO the line is HORIZONTAL

12. Rate of change on Graphs The STEEPER the line, the GREATER the rate of change

13. Rate of change on Graphs The STEEPER the line, the GREATER the rate of change

14. Let’s Try one

15. Part APart B Part C

16. Part APart B Part C Where is the rate of change positive? Part A

17. Part B Part C Where is the rate of change negative? Part C

18. Part APart B Part C Where is the rate of change the greatest? Part C

19. Part APart B Part C Where is the rate of change the zero? Part B

20. Part A Part B Part CPart D Where is the rate of change zero? Part A

21. Part B Part CPart D Where is the rate of change positive? Part C, D

22. Part A Part B Part CPart D Where is the rate of change negative? Part B

23. Part A Part B Part CPart D Where is the rate of change the greatest? Part B

24. Rest of class Work on this homework. It will be due tomorrow as homework