Lines of Best Fit
Flashcard
•
Mathematics
•
9th Grade - University
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a line of best fit?
Back
A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data points.
Tags
CCSS.8.EE.B.5
2.
FLASHCARD QUESTION
Front
How do you determine the slope of a line?
Back
The slope of a line is determined by the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
What does a positive correlation indicate?
Back
A positive correlation indicates that as one variable increases, the other variable also increases.
Tags
CCSS.HSS.ID.B.5
4.
FLASHCARD QUESTION
Front
What does a negative correlation indicate?
Back
A negative correlation indicates that as one variable increases, the other variable decreases.
Tags
CCSS.HSS.ID.B.5
5.
FLASHCARD QUESTION
Front
What is the y-intercept in a linear equation?
Back
The y-intercept is the point where the line crosses the y-axis, represented by the value of b in the slope-intercept form y = mx + b.
6.
FLASHCARD QUESTION
Front
What does it mean if there is no association in a scatter plot?
Back
No association means that there is no discernible relationship between the two variables; changes in one do not affect the other.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
How can you predict values using a line of best fit?
Back
You can predict values by using the equation of the line of best fit to find the corresponding y-value for a given x-value.
Tags
CCSS.HSF.IF.A.2
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