1. Warm up 8/26 Write the equation of the transformation you see 1. 2. 3. Potatoes cost a chef $18 a box, and carrots cost $12 a box. The chef want to spend no more than $144. Write an inequality for the number of boxes the chef can buy. More notes on 1.9 transformations of parent graphs has been posted online – unit 2 section 1.9.

2. Homework Group Check in with your group! See which problems you have questions on Help your group member. Still unsure ? Thank about what you need to ask. Write those questions down. - Go over as a class.

3. Be seated before the bell rings DESK homework Warm-up (in your notes) Ch 2 test tues 9/1 Agenda: Warmup Go over hw p. 128 Note 2.7

4. Notebook Table of content Page 1 1 1) 1-1 Sets of Numbers /1.2 Properties of Numbers 2.7 Curve fitting 2) 1-3 Square Roots 3) 1-4 Simplify Algebra Expression 4) 1.6 Relations/1.7 functions 5) 1.9 Parent Functions 6) 2.1 Linear Equations/ 2.2 Proportions 7) 2.3 & 2.4 8) 2.7 Curve Fitting Learning targets 2.7: I can perform a linear regression to find a line of best fit for scatterplot data and use linear models to make predictions

5. Don’t forget test retakes

6. 2.7 Curve fitting Fit scatterplot data and use linear models to make predictions A Regression is a relationship between the variables A scatter plot is a graph of order pairs. Main purpose is to analysis a relationship between the two variables Strength is classified by a Correlation A line of best fit is use to make a prediction.

7. No correlation Positive correlation Negative correlation Positive correlation

8. What is Lebron James’ shoes size ? 6' 8" What is Lebron James’ shoes size if he is 6 ft 8 inches? In order to find out we will (1) gather all students’ height / shoe sizes. (2) Make a scatter plot. (3) Look for any correlation. (4) Draw a line of best fit. (5) Find equation of our line. (6) Use the line to make a prediction.

9. Steps 1.Plot data points 2.Identify the correlation 3.Sketch a line of best fit. 4.Take 2 points 5.Find slope and write equation of line. Question: What is the baby alligator’s length next September.

10. Steps 1.Plot data points 2.Identify the correlation 3.Sketch a line of best fit. 4.Take 2 points 5.Find slope and write equation of line. Question: Use the equation to predict the number of bat in 3 years

11. Closer: Summarize what one person in your group learned in class today.