Chapter 6 Algebra
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Anthony Clark
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9 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the correlation coefficient.
r = -0.8
r = -0.5
r = 0.5
r = 0.8
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the least squares regression line for a data set is y = -1 + 4x , what is the predicted value of y when x = 7?
The predicted value of y when x = 7 is 27.
The predicted value of y when x = 7 is 31.
The predicted value of y when x = 7 is 15.
The predicted value of y when x = 7 is 20.
Tags
CCSS.8.EE.C.8C
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using the information provided in the picture, What is the equation of the LSRL?
y = -126.43x + 0.59
y = 0.94x - 126.43
y = 0.59x + 126.43
y = 0.59x - 126.43
Tags
CCSS.8.EE.C.8C
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using the information in the picture, What is the slope of the LSRL?
0.59
-126.43
0.89
0.94
Tags
CCSS.HSF.LE.B.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using the information provided in the picture, What is the strength of the relation?
Strong
Moderate
Weak
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve:
y = 2x -11
-3y = -6x -15
(-1.5,-4)
(1.5,4)
No solution (parallel lines)
Infinitely many solutions
Tags
CCSS.8.EE.C.8B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
CCSS.HSA.REI.D.12
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