TEKS.MATH.8.5D

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

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TEKS.MATH.8.5D

Which equation best matches the trend line from the scatter plot ?

• A
• B
• C
• D

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TEKS.MATH.8.5D

TEKS.MATH.8.5I

Estimate the value of r:

• 0.03
• -1
• 0.79
• - 0.72

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TEKS.MATH.8.5D

TEKS.MATH.8.11A

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 pages would be in a book with 19 chapters.

• 150 pages

• 170 pages

• 190 pages

• 210 pages

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TEKS.MATH.8.5D

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

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TEKS.MATH.8.5D

TEKS.MATH.8.11A

TEKS.MATH.9-12.VI.C.1

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

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TEKS.MATH.8.5D

TEKS.MATH.8.4C

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

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TEKS.MATH.8.5D

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?

• 50 min

• 80 min

• 45 min

• 60 min

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TEKS.MATH.8.5D

TEKS.MATH.8.11A

Which could be a good Line of Best fit?

• a

• b

• c

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TEKS.MATH.8.5D

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

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TEKS.MATH.8.5D