Scatterplots and Systems of Equations

How many solutions does this system have?

y = 2x + 1

y = 4x - 1

• One Solution

• No Solution

• Infinite Solutions

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 

• 12 chapters

• 19 chapters

• 14 chapters

• 21 chapters

identify the outlier

• 30, 100

• 100, 30

• there is no outlier

Which of the following lines represents the trend line for the scatter plot?

• A

• B

• C

• D

Which statements about the scatterplot are correct? Choose two correct answers.

• The scatterplot suggests a linear relationship between x and y.

• The scatterplot does not suggest a linear relationship between x and y

• The scatterplot suggests that as x increases, y increases

• The scatterplot suggests a negative relationship between x and y .

• The scatterplot shows no relationship between x and y .

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?  (a)  

• 65

• 92

• 70

• 76

What kind of trend is shown from this scatterplot?

• positive correlation

• negative correlation

• none

• cannot be determind

Which statements about the scatterplot are correct? Choose two correct answers.

• The scatterplot suggests a linear relationship between x and y.

• The scatterplot does not suggest a linear relationship between x and y

• The scatterplot suggests that as x increases, y increases

• The scatterplot suggests a negative relationship between x and y .

• The scatterplot shows no relationship between x and y .

What is the trend for this scatter plot

• Negative

• Positive

• None

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

• 65

• 92

• 70

• 76