Scatterplots Trend Line, Line of Best Fit Equation
Authored by Barbara White
Mathematics
8th Grade
CCSS covered
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the line of best fit?
y = 5/3x + 375
y = 1/3x + 475
y = 5/3x + 3
y = 1/3x + 375
3.
MULTIPLE CHOICE QUESTION
30 sec • 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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the line of best fit to approximate rate of change relative to the scatter plot above.
7/5
5/7
-7/5
-5/7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation of the line of best fit?
y = 1/2x + 3
y = 1/40x
y = 1/2x + 15
y = 1/40x + 15
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correlation between the x and y variables?
y increases as x increases
y is constant
y decreases as x decreases
y descreases as x increases
Tags
CCSS.HSF-LE.A.1B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Predict the grade of a student that has 7 absences.
50
45
70
60
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