Best Graph to Fit a Data Set
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding. What is the equation of the line of best fit?
y = -25x + 170
y = 25x + 170
y = -(5/8) x + 170
y = (5/8) x + 170
Tags
CCSS.HSF.LE.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The graph above shows a line of best fit for data collected on the amount earned by waiters and waitresses last week in relation to the number of tables they served. What is the equation of the line of best fit?
y = (5/3) x + 375
y = (1/3) x + 475
y = (5/3) x + 475
y = (1/3) x + 375
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Looking at the graph showing a line of best fit, what is the correlation shown?
Length of life is constant
Length of life increases as amount of sunlight increases
Length of life increases as amount of sunlight decreases
Length of life decreases as amount of sunlight increases
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A group of students did an experiment to see how drinking cups of coffee right before bed affected sleep. The results are shown below in the scatter plot with a line of best fit. Use the given line of best fit to approximate the rate of change relative to the scatter plot.
(7/5) hours/cup
(5/7) hours/cup
- (7/5) hours/cup
- (5/7) hours/cup
Tags
CCSS.HSF.IF.B.4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
A
B
C
D
Tags
CCSS.HSF-LE.A.1B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use your graphing calculator to enter this data, then calculate the equation for the line of best fit. (Round each decimal to the nearest tenth)
y = -25.1x + 5.6
y = 25.1x + 5.6
y = -5.6x + 25.1
y = 5.6x + 25.1
Tags
CCSS.8.EE.C.8C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scatter plot shows a linear relationship between x and y?
Graph A
Graph B
Graph C
Graph D
Tags
CCSS.8.F.A.3
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