Scatter Plots Best Line of Fit
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scatterplot most likely has a line of best fit represented by y = - 2x + 1
W
X
Y
Z
Tags
CCSS.8.EE.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed. What is the equation of the line of best fit?
y = (3/2) x
y = 30x
y = 30x + 300
y = (3/2)x + 300
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Looking at the graph showing a line of best fit, what is the correlation shown?
Length of life is constant
Length of life increases as amount of sunlight increases
Length of life increases as amount of sunlight decreases
Length of life decreases as amount of sunlight increases
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scatter plot shows a linear relationship between x and y?
Graph A
Graph B
Graph C
Graph D
Tags
CCSS.8.F.A.3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a line of best fit used for?
To make predictions
To make the graph look pretty
To connect the points
To make it look like you know what you are doing
Tags
CCSS.8.EE.B.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of correlation does this graph have?
positive
negative
none
all of the above
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of correlation does this graph have?
positive
negative
none
all of the above
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