Analyze Scatterplot and Line of Best Fit
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the equation of the line of best fit for the given data
y=163.41x+4.19
y=-163.41x+4.19
y=-4.19x+163.41
y= 4.19x+(-163.41)
Tags
CCSS.8.EE.C.8C
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the equation of the line of best fit?
y = 3/2x
y = 30x
y = 30x + 300
y = 3/2x + 300
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.
f(x) = 25.05x + 5.57
f(x) = 5.57x + 25.05
f(x) = -5.57x + 25.05
f(x) = 5.57x - 25.05
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the line of best fit?
f(x)= 5x+1.82
cannot be determined
f(x)= 1.82x + 5.02
f(x)= 1.1x + 4.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shown is comparing a person's foot length to their height in cm. What might the height of a person be with a foot length of 30 cm?
185 cm
180 cm
190 cm
192 cm
Tags
CCSS.HSF.IF.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chang wants to know if he is improving his skill on the cello. He created a scatter plot and drew a line of best fit. If he uses the point (2, 8) and (5, 1.5) from his line, which equation would best represent the line of best fit?
y = -2.17x + 12.3
y = 2.17x + 3.77
y = -0.46x + 9
y = -2.17x – 9.35
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The graph below shows the relationship between the distance in miles a delivery truck traveled and the number of hours each delivery took. Which of the two given points would be the best to use to calculate the line of best fit?
(500, 11) and (700, 11)
(300, 9) and (400, 7)
(400, 9) and (500, 11)
(300, 7) and (600, 10)
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