

Trend Lines Scatter Plots
Presentation
•
Mathematics
•
7th Grade
•
Hard
Joseph Anderson
FREE Resource
8 Slides • 8 Questions
1
Scatterplots and Trend Lines
8th Grade
2
What is a Trend Line?
When data is collected, points do not form a straight line, but they may approximate to a linear relationship
A trend line is a line that is
VERY CLOSE to most of the data points.
It is used to make predictions
3
Multiple Choice
What is a trend line used for?
To make predictions
To make the graph look pretty
To connect the points
4
First, Let's make a trend line!
5
6
7
8
Make a Prediction!
How many visitors would the beach have at 90 degrees?
Step 1: Draw your trend Line
Step 2: See what number would line up with 90 and your trend line
9
Make a prediction!
What will the weight of the shipment be for 7 books?
10
Multiple Choice
Which graph shows a line of best fit (trend line) for the scatter plot?
Graph A
Graph B
Graph C
Graph D
11
Multiple Choice
12
Multiple Choice
13
Multiple Choice
14
Multiple Choice
15
Multiple Choice
Based on this scatterplot, approximately what score would a student with 6 absences expect to receive on the final exam?
65
92
67
76
16
Multiple Choice
Scatterplots and Trend Lines
8th Grade
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