1. Bell Ringer: What type of correlation is seen here:
Friday, February 4th
Bell Ringer:
What type of correlation is seen here:
NEGATIVE CORRELATION

2. Now let’s review the HW
(0, 8)
(10, 2)

3. Write the equation
(0, 8)
(10, 2)

4. (0, 8)
(10, 2)

5. Now let’s review the HW
(0, 8)
(10, 2)

6. Key Points Correlation: how x relates to y Trend lines: Predictions
Positive
Negative
None
Trend lines:
Lines that summarize the correlation in data
Predictions
We can use trend lines to make predictions

7. Objective:
I CAN determine the equation of the line of best fit

8. Which LINE WOULD YOU CHOOSE?`

9. What do you want to know?

11. Here is what I will give you

12. What is type of correlation do we see here?

13. Now let’s draw the trend line
(9, 66)
(22, 135)
Now let’s draw the trend line

14. Write the equation
(9, 66)
(22, 135)

15. (4, 52)
(12, 82)

17. Answer these questions with your partner
What does the slope represent?
What does y – intercept mean?
The number of seconds per item
How long it takes to check out zero items
time to say “hello, how are you doing?”

19. Homework Finish the problems on the back of the sheet
There will be a 5 question ten minute quiz
It will be just like the problems on the back of the sheet

20. Toaster Video

21. Toasters
How long will the 9th toaster run for

22. (5, 126)
(4, 114)
(3, 102)

23. Answer these questions with your partner
What does the slope represent?
What does y – intercept mean?
Predict how long will the 9th setting go for?
Number of seconds per setting
No meaning
174 seconds = 2 mins 54 secs

24. Let’s Check our answer

25. Do you want to see the toast

26. HW + the quiz Finish the back of the sheet
If you can answer those questions you will good for tomorrow’s quiz