Aug 16th

1
Warm up 8/26
Write the equation of the transformation you see
2.
1.
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
Agenda Warmup Go over hw p. 128 Note 2.7
DESK
Warm-up (in your notes)
homework

• Ch 2 test tues 9/1

4
Notebook
1
Table of content
2.7 Curve fitting
Page
1) 1-1 Sets of Numbers /1.2 Properties of
Numbers
1
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
Dont 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
Positive correlation
Negative correlation
8
What is Lebron James shoes size ?
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.
6' 8"
9

• Steps
• Plot data points
• Identify the correlation
• Sketch a line of best fit.
• Take 2 points
• Find slope and write equation of line.

Question What is the baby alligators length
next September.
10

• Steps
• Plot data points
• Identify the correlation
• Sketch a line of best fit.
• Take 2 points
• 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.