M3T1 Test Corrections

Which graph depicts a non-linear relationship?

• Graph A

• Graph B

• Graph C

• None of the above

Tags

CCSS.8.F.A.3

In which graph do the points form a V-shape?

• Graph A

• Graph B

• Graph C

• None of the above

Tags

CCSS.HSA.CED.A.2

Which graph is most likely to represent a scenario with no correlation?

• Graph A

• Graph B

• Graph C

• None of the above

Tags

CCSS.8.EE.B.5

Which graph is most likely to represent a linear equation?

• Graph A

• Graph B

• Graph C

• None of the above

Tags

CCSS.8.F.A.3

Which statement is true about the association between the wind speed and the number of kites flown at the park?

• The number of kites increases as the wind speed increases, so there is a positive association.

• The number of kites decreases as the wind speed increases, so there is a positive association.

• The number of kites increases as the wind speed increases, so there is a negative association.

• The number of kites decreases as the wind speed increases, so there is a negative association.

Janet is training for a marathon. She tracks her time per mile, in minutes, for 8 weeks. The line of best fit that models the data is $ y = -0.18x + 10 $. What does the predicted $ y $-intercept mean in this situation?

• Janet’s time decreases by about 10 minutes per mile each week.

• Janet’s initial speed is about 10 minutes per mile.

• Janet’s time decreases by about 0.18 minutes per mile each week.

• Janet’s initial speed is about 0.18 minute per mile.

Tags

CCSS.HSF.LE.B.5

A medical student is conducting a study to track boys’ weight from age 5 to age 18. The student graphs some data and determines that the line of best fit is $ y = 1.73x + 80.13 $. What does the predicted slope mean in this situation?

• The increase in the number of pounds a boy gains each year

• The decrease in the number of pounds a boy gains each year

• The increase in the number of years for each pound a boy gains

• The decrease in the number of years for each pound a boy gains

Tags

CCSS.HSF.LE.B.5

The table shows how the value of a particular television model decreased over time. Which scatter plot shows the data and the line of best fit for the data?

• A scatter plot with a downward trend and a line of best fit showing a decrease.

• A scatter plot with an upward trend and a line of best fit showing an increase.

• A scatter plot with no trend and a horizontal line of best fit.

• A scatter plot with a random distribution and no line of best fit.

Which graph shows a linear decrease in value over time?

• Graph A

• Graph B

• Graph C

• All of the above

Tags

CCSS.8.EE.B.5

Which graph shows a positive correlation between the variables x and y?

• Graph A

• Graph B

• Graph C

• Graph A and C

• Graph A and B