Algebra Scatterplots and Lines of Best Fit Review
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
Which sentence describes the relationship shown on this scatter plot?
As the temperature decreases, the visitors increase.
As the temperature increases, the number of visitors increases.
As the visitors increase, the temperature decreases.
No correlation
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on the trend line, about how many guests should be expected if the temperature is around 80 degrees?
8,300
7,300
8
9,300
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the best prediction for the number of candies in the jar when 30 students visit her?
90
180
135
150
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
identify the outlier
30, 100
100, 30
there is no outlier
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Predict the grade of a student that has 7 absences.
50
45
70
60
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the equation of the line of best fit?
y = -25x + 170
y = -5/8x + 170
y = 25x + 170
y = 5/8x + 170
7.
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
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