
Exploring Scatterplots and Trend Lines
Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the standard form of a trend line equation?
y = mx + b
x = my + b
y = mx + c
y = bx + m
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'm' in the trend line equation represent?
Slope
Variable
Intercept
Coefficient
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the slope of a trend line?
Sum of x divided by sum of y
Sum of y divided by sum of x
Change in x over change in y
Change in y over change in x
Tags
CCSS.8.EE.B.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a trend line has a slope of 1/5 and starts at 9, what is the equation?
y = 9x + 1/5
y = 5x + 9
y = 1/5x + 9
y = 1/5x - 9
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can trend lines be used to make predictions?
By determining the y-intercept only
By extending the line to new x values
By calculating the area under the curve
By finding the maximum value of x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the predicted time to fold 60 items based on the trend line equation y = 0.5x?
15 minutes
120 minutes
60 minutes
30 minutes
Tags
CCSS.HSF-LE.A.1B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the y-intercept represent in the context of a vending machine stock level?
Initial stock level
Rate of stock decrease
Total days since last stock
Number of vending machines
Tags
CCSS.HSF.LE.B.5
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