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Chapter 6 Algebra

Authored by Anthony Clark

Mathematics

9th Grade

CCSS covered

Chapter 6 Algebra
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9 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

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

Media Image

A
B
C
D

Tags

CCSS.HSA.REI.D.12

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