HOMEWORK CHECKLast Lessons HomeworkPage 137 # 6-9 and 11-12

ANY QUESTIONS?

QUESTION #7

QUESTION #8

QUESTION #9

QUESTION #11

QUESTION #12 a/b

Number of Days Tickets Sold Total Number of Tickets Sold

?

1 162 193 224567

Goal = $175

Minds On….Find the Coordinates for the points of the starWrite them as (x,y)

Lesson 2: Section 4.5 Using a Scatter Plot to Represent a SequenceGrade 7: Chapter 4 Patterns and

Relationships

WHAT IS A SCATTER PLOT?A scatter plot is a type of graph that has a whole bunch of points on a grid.

How does it work?

Number of Triangles

Perimeter of path (units)

1 32 43 54567

Priya is designing a path for the school garden.

The path will have 30 equilateral triangle

paving stones which line up to form a straight path. What is the perimeter if

each side is 1 unit in length.

1 unit

?

How Do you Plot the Points?

Number of Triangles

Perimeter of path (units)

1 32 43 545678

How many Border Pieces will Priya need for the path?

On each side of the path there will be border pieces. Each border piece is half as long as

one side of a triangle stone.

Number of Triangles

Perimeter of path (units)

Number of Border Pieces

1 3 42 4 63 54 65 76 87 98 10

1 unit

LETS PLOT IT

LETS EXTRAPOLATE

HOW MANY BORDER PIECES DID SHE NEED?

LETS PRACTICE….

Page 141Questions 5,6,7,8

LETS TAKE UP QUESTION 6A) Make a scatter plot to represent this toothpick pattern.

1 2

3 45

WHAT DO I DO FIRST?

LETS GRAPH

Review of the TWO Strategies

TABLE OF VALUES

SCATTER PLOT

HOMEWORK

PAGE 141 #9ab, 11 & 12

LETS TAKE UP QUESTION 8

Nitharsana is building a rail fence that has sections like this.

Use a scatter plot to determine the number of posts and rails Nitharsana will need to build each fence.

1 Section

A) 8 Sections long B) 14 Sections long Posts Rails

1