Algebra 1 Semester Exam
Flashcard
•
Mathematics
•
9th Grade
•
Hard
+6
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the correlation coefficient (r) and what does it indicate?
Back
The correlation coefficient (r) is a statistical measure that describes the strength and direction of a relationship between two variables. It ranges from -1 to 1, where 1 indicates a perfect positive correlation, -1 indicates a perfect negative correlation, and 0 indicates no correlation.
Tags
CCSS.HSS.ID.C.8
2.
FLASHCARD QUESTION
Front
How do you calculate the slope of a line given two points (x1, y1) and (x2, y2)?
Back
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
What is a linear equation?
Back
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
4.
FLASHCARD QUESTION
Front
What does the y-intercept represent in a linear equation?
Back
The y-intercept is the point where the line crosses the y-axis. It represents the value of y when x is 0.
5.
FLASHCARD QUESTION
Front
What is the difference between a positive and negative slope?
Back
A positive slope indicates that as x increases, y also increases, resulting in an upward trend. A negative slope indicates that as x increases, y decreases, resulting in a downward trend.
Tags
CCSS.8.EE.B.5
6.
FLASHCARD QUESTION
Front
Back
7.
FLASHCARD QUESTION
Front
What is the line of best fit in a scatter plot?
Back
The line of best fit is a straight line that best represents the data points in a scatter plot. It minimizes the distance between the line and all the points.
Tags
CCSS.8.EE.B.5
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