Line of Best Fit from Scatter Plot
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which line is the best fit for the data?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which line is the best fit for the data?
Tags
CCSS.8.EE.B.5
3.
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
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which line is the best fit for the data? (Half points above the line, half points below the line.)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which line is the best fit line for this scatter plot?
a
b
c
d
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose data related to the AVERAGE Temperature outside (T) and the number of winter Coats (C) sold at a store is collected and graphed.
The LINE OF BEST FIT has the equation C = -3T + 150.
Use this equation to predict the number of coats sold when the average temperature outside is 20°.
40
75
90
115
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose a LINE OF BEST FIT passes through the points (6, 34) and (8, 50). The EQUATION of this line is . . .? (hint: find the slope and the equation in point-slope form. THEN put it into slope-intercept form)
y = 8x – 5
y = 2x
y = 2x + 7
y = 8x – 14
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