Scatterplots and Best Fit Lines
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Anthony Clark
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Make a prediction for a resting heart rate after 6 hours of exercise a week.
6
50
55
59
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scatterplot suggests a linear relationship between x and y?
Tags
CCSS.8.F.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The scatterplot shows the temp, in degrees, outside a house every hour for 10 hours.
Estimate the temp after 13 hours based off the trendline.
57.5
50
10
13
61.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following would be the most accurate equation for the scatter plot?
y = -2x - 7
y = -x + 7
y = 3x + 7
y = 25x + 7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which shows a line of best fit?
Tags
CCSS.8.EE.B.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?
0 = 8/5 (1) - 8/5
y = -8/5 x + 8/5
y = 8/5 x - 8/5
y = mx + b
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If m = -3/4 and b = 9, what is the equation of the trend line in y= mx + b?
0 = -3/4 (9) +9
y = -3/4 x + 9
y = -3/4 x - 9
y = 3/4 + 9
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
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