Scatterplots & Trend Lines
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a scatterplot?
Back
A scatterplot is a type of graph that displays values for typically two variables for a set of data. Each point on the graph represents an observation.
Tags
CCSS.8.SP.A.1
2.
FLASHCARD QUESTION
Front
What does a trend line represent in a scatterplot?
Back
A trend line is a straight line that best represents the data on a scatterplot. It shows the general direction (trend) of the data points.
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
How do you determine the slope of a trend line?
Back
The slope of a trend line is calculated by taking the change in the y-values divided by the change in the x-values (rise over run).
Tags
CCSS.8.EE.B.5
4.
FLASHCARD QUESTION
Front
What does a positive slope indicate in a trend line?
Back
A positive slope indicates that as the x-values increase, the y-values also increase, showing a direct relationship between the two variables.
Tags
CCSS.8.EE.B.5
5.
FLASHCARD QUESTION
Front
What does a negative slope indicate in a trend line?
Back
A negative slope indicates that as the x-values increase, the y-values decrease, showing an inverse relationship between the two variables.
Tags
CCSS.8.EE.B.5
6.
FLASHCARD QUESTION
Front
What is the line of best fit?
Back
The line of best fit is a straight line that best represents the data points on a scatterplot, minimizing the distance between the line and all the points.
Tags
CCSS.8.EE.B.5
7.
FLASHCARD QUESTION
Front
How can you estimate values using a trend line?
Back
You can estimate values by locating the x-value on the trend line and reading the corresponding y-value.
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